Length Of Lh Surge During Ovulation

Helen asks…

What is this??

Ok day before yesterday i noticed some clear but watery slimmy stuff (mucus) coming out of me.I didn’t have intercourse the nite before noticing this stuff. So could this be a sign of inplantation or sign of ovulation?
I have also have been vomunating off and on for now about a week, sore boobs.

Pregnancy Advisor’s answers:

It’s a sign of ovulation.

Read this:

All About Ovulation

What is Ovulation?
Ovulation is the release of a mature egg (ovum) from the ovarian follicle. Each menstrual cycle, several ovarian follicles begin to mature and develop under the influence of pituitary hormones. Usually only one follicle develops fully. While the other follicles recede, this dominant follicle produces an egg which will be released and which can be fertilized. The growing follicle secretes increasing amounts of the hormone estrogen. Following peak estrogen production, there is a surge of luteinizing hormone (LH). The LH surge triggers the release of the mature egg from its follicle. This is ovulation.

After Ovulation
Once ovulated, the egg is picked up by one of the fallopian tubes and begins to travel towards the uterus in the fallopian tube. This is where fertilization, if it is to happen, takes place. The follicle that released the egg becomes known as the corpus luteum after ovulation and begins to secrete the heat inducing hormone, progesterone.

The lifespan of the egg after ovulation is just 12-24 hours, maybe even less. Fertilization must take place within this timeframe. After this timeframe, the egg begins to degenerate and is no longer capable of being fertilized. This seems like a very short window of time for conception to take place. However, sperm deposited prior to ovulation can survive in the female reproductive tract for a few days, so the few days before ovulation takes place are also considered fertile days.

Ovulation and the Cycle Phases
Ovulation is the event that defines the phases of the menstrual cycle. The phase before ovulation, when the ovarian follicles are developing, is called the follicular phase. The phase after ovulation is called the luteal phase. The length of the follicular phase may vary but the luteal phase length is generally constant from cycle to cycle for the same woman, lasting 10-16 days. When cycles are irregular, it is usually because ovulation occurred earlier or later than usual. Knowing when ovulation occurred allows you to see if intercourse was well-timed for conception and lets you determine your luteal phase length. Knowing your luteal phase length tells you when to expect your period or a positive pregnancy test result.

The fertility chart below illustrates the cycle phases with ovulation indicated by the vertical red line.

Cycle Phases

When does Ovulation take place?
Ovulation takes place, on average, about two weeks before your period, though it can vary from 10-16 days before the onset of menstruation depending on the length of your luteal phase. During an “average” 28 day cycle, ovulation is usually expected to take place between cycle days 13-15. Based on this guideline, many women are taught to expect ovulation around day 14 of their menstrual cycle. Many women, however, do not have average cycles and even those who usually do may see irregularities from time to time.

A typical menstrual cycle may be anywhere from 21 to 35 days according to the American Society for Reproductive Medicine. Some women even notice cycles that are shorter or longer than this. Ovulation, then, may occur much earlier or later than typical guidelines suggest. For example, ovulation may occur on cycle day 23 during a cycle that is 35 days long for a woman with a 12 day luteal phase while ovulation may occur on cycle day 10 for a woman with a 24 day cycle and a 14 day luteal phase length. This variation among women and from cycle to cycle means that there is really no simple “one-size-fits-all” mathematical formula to calculate your ovulation date. However, it is possible to learn how to identify your own ovulation date and fertile signs by examining your fertility signals.

Detecting Ovulation
Your ovulation date and your time of peak fertility can be detected by charting your fertility signs. This is because our bodies produce signals that can alert us that ovulation is approaching and tell us when ovulation has passed. Fertility signs that indicate that estrogen levels are high and ovulation is approaching (and fertility is high) include observing increasingly stretchy and “egg white” cervical fluid and observing a high, soft and open cervix. Commercial devices such as ovulation prediction kits (OPKs) and fertility monitors can also tell us that ovulation is approaching by measuring the presence of estrogen or luteinizing hormone (LH) in urine. Charting your basal body temperature (BBT) allows you to pinpoint the day of ovulation and tells you when ovulation has passed because progesterone raises the basal body temperature after ovulation.

Susan asks…

when is my girlfriend most fertile?

Pregnancy Advisor’s answers:

According to the Royal College of Obstetricians and Gynecologists, you should have sex quite often (at least several times) a week around the ovulation phase.
The egg that is released during ovulation lives from 6 up to 24 hours, during that time it can be fertilized by sperm. Sperm usually lives about three days but in some cases can live up to 7 days in cervical mucus. This means that having sex 6 to 3 days before ovulation and during ovulation, you have the highest chances of conceiving. Thus your chances to conceive during ovulation are 40 percent, chances to conceive 1 to 2 days before ovulation are 30 percent, 4 to 6 days you have 10 percent chances to conceive.
It is also important to have sex regularly throughout the cycle, not only during ovulation, because this will boost the quality of sperm.

Timing your fertile time

Calculating fertile days

An average woman’s cycles will range from 21 up to 35 days and may also vary throughout the year. The menstrual cycle starts from the first day of your period and the days between the first and the next period determine your cycle length. In order to determine your most fertile days you need to keep track of your menstrual cycles for about 6 months to find your shortest and longest menstrual cycle. You need to subtract 14 days from the length of your average cycle. For example, if your average cycle is 25, then ovulation occurs about 11 days after the first day of your period. This method can be quite tiresome for some women especially for those who have irregular cycles.

Basal body temperature

Tracking your basal body temperature is another method to find out your most fertile time. Take temperature in your rectum or in your mouth every morning for about 3 months, before awakening and getting up. The temperature rises when ovulation has occurred. You are most fertile 4-6 days before and 1-2 days after the temperature rise.

Cervical mucus changes

The changes in the consistency of your cervical mucus can predict your most fertile time. These secretions occur due to hormonal changes. When the menstruation ends, the mucus is dry and it becomes wetter leading up to ovulation until it is the consistency of raw egg, slippery and stretchy during ovulation and this means that you are most fertile during this phase.

Ovulation Predictors tests

Today there are a number of handy and convenient tools to help you predict your most fertile time during menstrual cycle. You can buy the ovulation tests and use them at home to determine when you are most likely to conceive. There are two basic types of ovulation tests.

The first types are ovulation tests that determine the increase of luteinising hormone(LH) that takes place about 12 to 36 hours before ovulation. This type of ovulation test detects the amount of LH hormone in a sample of blood or urine.

The second type is saliva-based ovulation tests. They determine the surge of the oestrogen levels that occurs near ovulation. They come in the form of small portable microscope that detects when your saliva takes fern-like pattern, taking place at the time leading up to ovulation

Sharon asks…

Best Days To Conceive?

hello, i am trying to conceive after a miscarriage but i am not sure when my best days are? i started my cycle on october 13 which is last sat. can anybody help me?

Pregnancy Advisor’s answers:

Ovulation is the release of a single, mature egg from a follicle that developed in the ovary. It usually occurs regularly, around day 14 of a 28-day menstrual cycle.

Once released, the egg is capable of being fertilized for 12 to 48 hours before it begins to disintegrate. This is the most fertile period of your cycle: during ovulation your chances of conception are highest.

When does ovulation occur?

Ovulation usually takes place 14 days after the beginning of your menstrual cycle. The time of ovulation within the menstrual cycle is determined by the luteal phase, which is usually 12 to 16 days long.

You can calculate the time of ovulation within your cycle by subtracting the length of your luteal phase from the length of your cycle. For example, if your cycle is 28 days long and your luteal phase is 12 days long, the ovulation will occur on day 16 of your cycle (28-12=16).

The exact time of ovulation may vary within your cycle, because ovulation can be delayed by a number of factors such as stress, illness, diet, or increased physical activity.

How does ovulation determine my fertile days?

Your fertile period starts about 4-5 days before ovulation, and ends about 24-48 hours after it. This is because sperm can live in your body for approximately 4 to 5 days, and the egg can live for 24 to 48 hours after being released. You are most fertile on the day before and the day of ovulation.

What happens in my body during ovulation?

The process of ovulation is triggered by the release of Luteinizing Hormone (LH). The levels of this hormone increase significantly about 1-2 days before ovulation, causing the egg to be released from the ovary (this increase is known as the ‘LH surge’). The egg travels down the fallopian tube towards the uterus. If fertilization does not occur within 24 to 48 hours after ovulation, the egg disintegrates and is expelled with the uterus lining at the start of your next period, usually 12-16 days later. If fertilization occurs, the egg implants itself in the lining of the uterus and begins its growth, resulting in a pregnancy.

The luteal phase, also referred to as ‘days past ovulation’ or ‘DPO’, is the part of the cycle that starts at ovulation and ends the day before your next period. It usually lasts about 14 days and does not vary by more than a day in each person. The luteal phase is named after the corpus luteum (Latin: “yellow body”), a structure that grows on the surface of the ovary where a mature egg was released at ovulation. The corpus luteum produces progesterone in preparing the body for pregnancy. Your luteal phase must be at least 10 days long to support pregnancy.

The importance of the luteal phase

The length of the luteal phase determines the time of ovulation within your menstrual cycle. Ovulation can be delayed by a number of factors, such as stress, increased activity or medication, but the length of the luteal phase is usually constant. Taking this into account, you can calculate the time of ovulation within your cycle by subtracting the length of your luteal phase from the length of your cycle.

For example, if your cycle is 28 days long and your luteal phase is 12 days long, the ovulation will occur on day 16 of your cycle (28-12=16). Ovulation Calendar uses this formula to calculate your time of ovulation.

How do I determine the length of my luteal phase?

The only way to determine the exact length of your luteal phase is through hormone-specific blood tests.

What if I don’t know the length of my luteal phase?

If you are not sure about the length of your luteal phase, you can assume it is 14 days (the average length for most women).

Hope this helps..good luck..

Sandy asks…

i am ttc since 3 months.but evrytime failing :( .my periods have been regular thruout life.i am 24yr old.?

how many times should i do *** during my ovulatory days.how can i get to know which is the most suitable time when my egg is out and ready.
what can possibly be wrong in me??? i am so scared to go to a gynae . but someone told me that gynae can tell u the exact time of ovulation . is it true ??

Pregnancy Advisor’s answers:

Basicaly you need to start keeping track of your bbt take your temp every morning before you get out of bed, go to the bathroom , get a drink or anything take the temp first and keep track of it i kept a little notebook next to my nightstand and would write the date and time and what the temp was. You want to make sure your timing ovulation right and usually if your pretty regular on your cycles wait for two weeks past your next expected period and take a hpt here is a few tips that might help:

Counting Days.
The first day of your cycle begins on first day of bleeding. Count from that day until your next period. If you see a regular pattern, you can determine ovulation from the 11th to 14th day of your next period. Note that, to use this method, you must know how long your cycle usually lasts. Our ovulation calendar works well to pinpoint the potential fertile periods for those who have regular cycles.

Change in cervical mucus.
As your cycle progresses, your cervical mucus increases in volume and changes texture. The greater volume and changes in texture reflect your body’s rising levels of estrogen. You are considered most fertile when the mucus becomes clear, slippery, and stretchy. Many women compare mucus at this stage to raw egg whites.

Lower abdominal discomfort.
About one-fifth of women actually feel ovulatory activity, which can range from mild achiness to twinges of pain in the lower abdomen. The condition, called mittelschmerz (German for “middle-pain”), may last anywhere from a few minutes to a few hours and is a positive sign of ovulation.

A rise in body temperature.
Following ovulation, your temperature can increase by 0.5 to 1.6 degrees. You won’t feel the shift, but you can detect it by using a basal body temperature (BBT) thermometer. This temperature spike indicates that you’ve ovulated releasing an egg and stimulating the production of the hormone progesterone which raises body temperature. Its important to note, that this method does not predict the time of ovulation but can only help you in knowing whether you have already ovulated or not.

Ovulation Tests / Ovulation Predictor Kits
Ovulation tests work by detecting the pre-ovulation LH Surge in your body. These are very popular, can be used at home and allow you to predict, with great accuracy, your most fertile time of the month.

Clearly, the dynamics of the menstruation differ greatly among women. Length and regularity of the cycle may vary between women or for a particular woman over time. However, if your menstrual cycle occurs more frequently than every 21 days – or if your cycle is longer than 35 days, your cycle can be considered a bit irregular. If it consistently lasts more than 45 days, you may want to talk to your doctor. An irregular cycle or missed period is not necessarily a sign of a medical issue and can be influenced by diet, stress, and increase in physical activity, or illness. However, prolonged irregularities can indicate irregular ovulation, or anovulation (no ovulating at all). In such cases, contact your doctor to

Lisa asks…

Trying to conceive?

Sorry if there is too much info. My fiance and I are TTC. I am a healthy 28 year old and it is going on 3 months since I have discontinued the BCP. I have been on BCP for years so this is the first time I am actually noticing the signs my cervical mucus because the first time I got pregnant with my daughter I got off the pill and the next month I was pregnant. So now it has been 3 months and nothing. I am due for my period and have been love making almost every day last month June. I was suppose to get my period today. I haven’t been able to tell if I am ovulating yet because I am still learning how to. Last night during love making I had noticed this snot like mucus, it wasn’t wet like just sticky. I did not have an orgasm nor did my fiance had one. Could it be possible that instead of having my period I am just now ovulating when actually my period is due?

Pregnancy Advisor’s answers:

That really isn’t the best time to judge your cervical mucus, as there are too many fluids going around! You have arousal fluid, which is separate from your cervical fluid, and then there is the added semen, which can be hard to differentiate. You can, however, feel your cervix to see what position it is in. Http://www.fertilityfriend.com/HelpCenter/FFBook/ff_fertility_signs.html#45 This website has details on how to check it, but you could also get an ovulation predictor kit at any pharmacy to check for your LH surge to indicate impending ovulation.

If you already ovulated, it is going to be hard to tell anything really. Charting your temperatures would be really helpful to you as you come off BC pills so that you can see what your body is doing and if you are even ovulating. Www.fertilityfriend.com does a great job explaining it all, as does the book Taking Charge of Your Fertility by Toni Weschler. Basically, you just take your temperature each morning before getting out of bed, and you will see a pattern and be able to figure out your exact ovulation, the length of your luteal phase, when to expect your period or take a HPT, and even be able to see certain “signs” you may be pregnant.

Good luck, and hang in there. You can do Kegels after sex to get the semen out and then get a truer picture of your cervical fluid consistency.

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