Skip to content
My WebMD Sign In, Sign Up
Includes Expert Content
LH Surge
avatar
dt927 posted:
Is it possible to ovulate before an opk shows positive for your lh surge?
Reply
 
avatar
DUKE MEDICINE
David K Walmer, MD, PhD responded:
No. The LH surge is the signal to the ovaries to begin a sequence of events that will prepare the egg for fertilization and its release from the ovary. The surge appears initially in the bloodstream and then a little later in the urine. No one actually knows when ovulation occurs but it is not before 39 hours after the LH surge because IVF programs have demonstrated that the eggs can still be retrieved from the ovaries at this time point.


Featuring Experts

David Walmer, MD, PhD is a reproductive endocrinologist and infertility specialist at Atlantic Reproductive Medicine Specialists . During his 25 year...More

Helpful Tips

trying to conceive tip
My OBGYN Lady Doctor told me to count 10 days from day one of your period... so I just started my period Friday December 2nd, so I will ... More
Was this Helpful?
8 of 8 found this helpful

Helpful Resources

Be the first to post a Resource!

Related Drug Reviews

  • Drug Name User Reviews

Report Problems to the
Food and Drug Administration

FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

For more information, visit the Duke Fertility Center