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Doctor insights on: Ovulation Luteal Phase Calculator

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Luteal Phase (Definition)

The luteal phase (or secretory phase) is the latter phase of the menstrual cycle (in humans and a few other animals) or the estrous cycle (in other placental mammals). It begins with the formation of the corpus luteum and ends in either pregnancy or luteolysis. The main hormone associated with this stage is progesterone, which is significantly higher ...Read more


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Does your luteal phase always stay the same even if you ovulate late?

Sort of: Yes it does, but 'yes' means 90% - it may vary a bit from month to month regardless (it's not a swiss watch.). ...Read more

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Hi did my s prog test today day 21 it is more than the luteal phase 88.5 what does it mean am I ovulating or why is it high. We are trying for a baby?

Hi did my s prog test today day 21 it is more than the luteal phase 88.5 what does it mean am I ovulating or why is it high.  We are trying for a baby?

Ovulation: A day 21 Progesterone test above 10 signifies that you ovulated. No other conclusions can be made. If you miss your period then check a pregnancy test. Then and only then you can determine if you are pregnant or not. ...Read more

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How long should your luteal phase be? Does it change each cycle? I ovulated on 11th jan and had sex 11th-13th jan .

How long should your luteal phase be? Does it change each cycle? I ovulated on 11th jan and had sex 11th-13th jan .

It can vary: In a cycle that is exactly 28 days, the luteal phase would be about 14 days. However, many women's cycles are not exactly 28 days, and may even vary from month to month. You would need to chart yours for several months in order to get a feel for its regularity and usual events. ...Read more

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Long follicullar phase but normal 14 day luteal phase. Is this ok? What causes long follicular phase what can i do? Always ovulate around cd 25

Long follicullar phase but normal 14 day luteal phase. Is this ok? What causes long follicular phase what can i do? Always ovulate around cd 25

Keep body weigh down: Although premature death of the dominant follicle followed by replacement or follicular suppression are possible causes, the most common reason for long follicular phases in women is prolongation of the time from recruitment to emergence of the dominant follicle. This is most commonly seen in PCOS. You are ovulating and menstruating, so that is good. There is not much for you to do. ...Read more

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My cycles are between 23-28 days. I ovulate in between 13-15th day. Which gives me a short luteal phase. TTC for 10 months now! Should I worry?

12 months: I'm not a Gynecologist, but ur cycle variation is not too abnormal IMHO. (I saw ur other post regarding the "luteal phase" as well). However, if/when u have been TTC for >12 months w/o success, then it's time 2 c a fertility specialist for diagnosis. They have reproductive medicine/treatments to regulate ur cycle & hopefully can tell if u or ur partner have medical issues that keep u from conceivn ...Read more

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I'm having watery CM 11dpo for a few days in a row. AF is due in 4 days. Does this mean I ovulate later than normal and have a short luteal phase?

Can not conclude: One can not draw conclusions regarding ovulation or you luteal phase based on watery mucous during one cycle. You could try a home ovulation kit to confirm ovulation. If your discharge continues then schedule a visit for testing for bacterial vaginosis and other infections. ...Read more

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Is it possible to have estrogen surges during the luteal phase? Particularly about 3 days after ovulation?

Yes: There is commonly a "secondary" estrogen surge during the luteal phase produced by the corpus luteum, although Progesterone is the larger surge during this time. This secondary estrogen phase is responsible for the one to two days of "fertile" cervical secretions and lower basal body temperatures and this tends to occur several days after ovulation. ...Read more

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How many mg of vit B6 to take for luteal phase defect? 29 day cycle, ovulation day 20, luteal phase of 10 days. Thanks

Non-proven therapy: Vitamin therapy for luteal phase defect is unproven; i know of no convincing evidence that it has nay impact on lpd at all. Therefore, there's no recommendation for 'how much' to take. You might be aware that experts do not even agree on the impact of lpd and whether it needs to be treated at all. ...Read more

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I am ovulating today and it's cd25 should we try to conceive? My luteal phase last month was 21 days after I ovulated?

I am ovulating today and it's cd25 should we try to conceive? My luteal  phase last month was 21 days after I ovulated?

Yes: You ovulated 4 days ago, so it is too late by this answer. Nevertheless, the most fertile days are the 1-2 days before ovulation and waiting until after ovulation is very bad for timing. Ovulation on cd25 is a bit late and you may want to talk with your doc to see if you would benefit from meds to improve the cycle, particularly if not pregnant in 6 months. Best wishes. ...Read more

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Why do I get moody and seem to be forgetful after ovulation (luteal phase). Usually i'm a happy person, what can I do to control it?

Why do I get moody and seem to be forgetful after ovulation (luteal phase). Usually i'm a happy person, what can I do to control it?

Talk to your: Gyn about what there is to offer you now. At your age with your plans and desires. It's all about the hormones. ...Read more

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Long cycles but always ovulate.. 14 day luteal phase and cycled not more than 40 days. Tested hormones all normal how can i shorten my cycle?

Long cycles but always ovulate.. 14 day luteal phase and cycled not more than 40 days. Tested hormones all normal how can i shorten my cycle?

Why?: This is normal. Your eggs just take a little longer to mature. If you want a 28 day cycle you can get it with birth control pills patches or rings but when you stop them you will simply go back to your normal cycles. ...Read more

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I'm having a mid luteal phase progesterone test done, on cycle day 21. I've been ovulating between days 19-20. Will this affect my test results?

I'm having a mid luteal phase progesterone test done, on cycle day 21. I've been ovulating between days 19-20. Will this affect my test results?

Yes: The midluteal phase is considered approximately one week after ovulation. Your Progesterone level will be low if your ovulation was only a day or two before. ...Read more

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Im having exactly 31 days cycle on Clomid (clomiphene) does that mean im ovulating on day 17 or 18 or is it possible that my luteal phase is longer than 14 days?

Im having exactly 31 days cycle on Clomid (clomiphene) does that mean im ovulating on day 17 or 18 or is it possible that my luteal phase is longer than 14 days?

Luteal phase: Luteal phase length is from ovulation till first day of the next cycle which is at the end of menstural flowlength of luteal phase is generally 14 days and generally not variable by more than a day so can calculate ovulation time. ...Read more

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I had my period and my cycle was 29 days so when do I ovulate and do I count luteal phase to get correct ovulating?

I had my period and my cycle was 29 days so when do I ovulate and do I count luteal phase to get correct ovulating?

14 days before start: About 14 days before the expected start of the upcoming period, one is likely to ovulate. Of course, it can vary from woman to woman, as people are not identical. That means a 28 day cycle = ovulation on or about day 14, and a 30 day cycle = ovulation on or about day 16 of the cycle (14 days before the first day of the next period). ...Read more

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Does a short follicular phase affect fertility? I ovulate on day 9 or 10 of my cycle . My luteal phase is always 16 days.

Probably not: You may want to follow up with a pre-ovulation ultrasound, to see if the follicle is appropriate in size. And also to check a. Luteal phase progesterone to see if it's greater than 10 ng/ ml. ...Read more

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Is luteal phase fixed to be 14 days or is it variable? If i ovulate ( by tvus ) from 14 days when exactly shall i wait for my period?

Menstrual Cycle : It varies. Regular menstrual cycles are usually every 28 days. The ovulation/luteal phase occurs usually in the middle of each cycle; i.e. Day 14 plus or minus one day variation. In some women it is fixed for many years. But, later in time as they age or become pregnant or develop other conditions in life; including stress; it could change. If your cycles are irregular, it needs to be checked. ...Read more

Dr. Philip Chenette
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Ovulation (Definition)

Ovulation is the act of the ovary releasing the egg after it has been hormonally prepared, to be ...Read more