Can Prometrium Give False LH Surge?

Question

I am 35, and at age 34 had a healthy baby girl. However- when I got pregnant with her, I kept spotting for a few weeks. My doctor put me on prometrium until week 14 because when she tested my progesterone at week five, I was at a seven. After one week of Prometrium, I went up to a 40.
I have been tracking cycles again to have another baby, but I do not make Cervical mucus (at all) and I have never had a positive LH Surge show up on a OPK. I used the bbt method this time and on Friday noticed a dip in temp of almost a full degree!(day 14) That night was our night to TTC. The next day I took prometrium and was still continuing tracking BBT and OPK. After taking the Prometrium, all of a sudden(for the very first time in months of tracking) an LH surge showed up yesterday morning. I am assuming the Prometrium has something to do with it because I had never been on it before the first pregnancy and never had an LH surge (though I still got pregnant.) So— my question: what is more believable, the dip in temp on the bbt, or the LH surge (day 16 of a 30 day cycle). Can Prometrium give a false LH surge presence?

Jennifer

Answer

Last Updated: December 13, 2014
The LH surge is more accurate as an indicator of imminent ovulation. Prometrium will not cause an LH surge; although, if given in excess amounts can inhibit it.

Since you had low progesterone before, it would be worthwhile to see a physician or other medical provider who is well-versed in NaProTechnology to evaluate you. Progesterone or HCG supplementation may help you conceive and avoid miscarriage.

Dr. George Delgado

Answered By:

George Delgado, M.D., F.A.A.F.P.
President and Founder of Steno Institute and Medical Director of Culture of Life Family Services (COLFS), San Diego, is a Professional Member / Supporter of CANFP. Board certified in both family medicine and hospice and palliative medicine, Dr. Delgado received his medical degree from the University of California, Davis, and completed his residency at Santa Monica Hospital/UCLA. Dr. Delgado is a Natural Family Planning Medical Consultant, trained in NaProTechnology.

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