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Doctor insights on: Can Ovulation Happen With No Lh Surge

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What is the probability that after getting a positive home ovulation test/lh surge that someone not ovulate?

What is the probability that after getting a positive home ovulation test/lh surge that someone not ovulate?

Good question: There is some variability in9 the accuracy of the available otc ovulation prediction kits. If it's working, then the ovulation should occur for the overwhelming majority (>95%) of patients who experience the lh surge. You can have your doctor order a day 21 Progesterone level, and that will confirm ovulation (or prove it didn't occur), to help you be sure. ...Read more

Dr. Philip Chenette
1,816 doctors shared insights

Ovulation (Definition)

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


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How soon after LH surge does estrogen levels drop and ovulation happen?

How soon after LH surge does estrogen levels drop and ovulation happen?

LH surge to ovulate: Ovulation happens approximately 36 hours after the LH surge. Serum estrogen levels reach a peak about 24 hours before this occurs and come down dramatically afterwards. ...Read more

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How many days after a positive LH surge ovulation test can conception happen?

24-48 hours: The usual time of ovulation is 24-48 hours after the + surge is seen. The surge may show positive for 1-3 days. If you catch it on the upswing it could be 72 hours later. ...Read more

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What happens to LH surge during ovulation? Would the LH detector still give a positive read if u are ovulating? 

Yes it could: An lh surge is triggered when estrogen production from a growing follicle reaches a certain level. Some lh surges go up and down in 1 day. Others can be positive for 3-4 days. Ovulation usually occurs 24-36 hours after the peak so it is possible that the lh surge could still be positive during or after ovulation. Ovulation is triggered by the lh surge but the lh surge is not changed by ovulation. ...Read more

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Can ovulation occur without an LH surge?

No: Lh must surge for ovulation to occur. But sometimes it is difficult to pick up the surge on an ovulation predictor kit if not time right. ...Read more

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When does ovulation occur after LH surge?

When does ovulation occur after LH surge?

1-2 days later: So the surge can last for about 36 hours from beginning to end. Ovulation usually occurs about 1-2 days after surge and the eggnormally lasts there 102 days. ...Read more

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How much time LH surge takes to drop after you ovulate?

How much time LH surge takes to drop after you ovulate?

LH drops before: Ovulation usually occurs approximately 24 to 36 hours after the lh surge. Therefore your lh should already be low when you actually ovulate. ...Read more

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What's the likelihood of having an LH surge but not ovulating?

What's the likelihood of having an LH surge but not ovulating?

Unknown, but low: The complete answer: it is uncommon to not ovulate after detecting a TRUE LH surge. This was called a luteininzed unruptured follicle (LUF) and we are not certain how often it happens, most estimates are around 10%. Here's the trick though: many women get false LH readings on OPK, so obviously you would NOT expect ovulation to follow these. Good wishes. ...Read more

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When does ovulation temperature dip occur in relation to LH surge?

After ovulation: The lh surge will occur about 24 to 36 hours before ovulation. By about 24c hours after ovulation the Progesterone levels begin to rise - that rise in Progesterone causes the basal body temperature to increase about one half of a degree fahrenheit. ...Read more

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Why is my LH surge last 72 hours not the normal 36 hrs? I ovulate every month

Why is my LH surge last 72 hours not the normal 36 hrs? I ovulate every month

It doesn't: I'm assuming you're using ovulation prediction kits. Once your surge happens it takes a period of time for the LH to go back down below a level where it goes below the test levels indicated to be positive. I addition if you are checking the LH very often you will pick up a positive a bit before the actual surge. I tell my patients once you have a positive test to stop & save for the next cycle ...Read more

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Ovulation occurs 12-36 after the beginning of the LH surge or after the peak of lh?

Ovulation occurs 12-36 after the beginning of the LH surge or after the peak of lh?

Ovulation is: Stimulated by the spike in fsh and lh, usually measured from the beginning, but it is a very rapid change in levels. ...Read more

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I got my LH surge on 24, 25th and got BBT spike on 30th... When did I ovulate then?

Go with OPK, but...: If I have to guess i'd go with the opk, but they are not as reliable as manufacturer would like you to believe - still a better guess than the bbt. The more regular your cycles, the more i trust the opk, the less regular...You get the idea. Specialists monitor patients in teh offcie with ultrasound to sort out this kind of dilemma. ...Read more

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Test stike of ovulation result yesterday is positive LH surge but today negative. What thats mean?

Test stike of ovulation result yesterday is positive LH surge but today negative. What thats mean?

LSH and ovulation: An ovulation predictor is positive with rapid increase in lh from the pituitary gland, stimulating release of an egg from the ovary. The surge is short, so the test will often be positive for only one day. Since the ideal situation for conception is for sperm to be present in the tube, waiting for the egg, coitus soon after a positive test is suggested. ...Read more

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What is the probability that after getting a positive home ovulation test/lh surge that someone not ovulate?

Good question: There is some variability in9 the accuracy of the available otc ovulation prediction kits. If it's working, then the ovulation should occur for the overwhelming majority (>95%) of patients who experience the lh surge. You can have your doctor order a day 21 Progesterone level, and that will confirm ovulation (or prove it didn't occur), to help you be sure. ...Read more

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When your LH surge drops is that because you have now ovulated or does it drop again after your surge before ovulation occurs?

When your LH surge drops is that because you have now ovulated or does it drop again after your surge before ovulation occurs?

Yes: No one who knows exactly how long lh surge last. It definitely lasts at least 36 hours. In most women. .We know from in vitro fertilization ovulation occurs somewhere between 36 to 48 hours after the lh surge. It is best to have relations with your partner the day of your lh surge and the next day. We know that it is best if sperm are there before ovulation. ...Read more

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My lh surge was from 10pm cd18 to 11am cd 19. Did i ovulated on cd 19 or cd 20, my bbt chart says cd 20 and i got a temp rise cd 21?

My lh surge was from 10pm cd18 to 11am cd 19. Did i ovulated on cd 19 or cd 20, my bbt chart says cd 20 and i got a temp rise cd 21?

Either one: Based on this information you could have ovulated on either day. It is not usually clinically important to narrow it down to the exact moment of ovulation. Just have sex around that time. A one day discrepancy is not going to make much difference. ...Read more