What happens if you conceive but you're on the last cycle of Provera (CD 16 - CD 25) as per doctor's orders?

Question

I know that Provera is not used anymore to determine if a woman is pregnant or not (bleeds if not pregnant, doesn't bleed if pregnant) because of the side effects on the babies.
My doctor put me on Provera 10mg from CD 16-25 to regulate a hormonal imbalance (LH, I think, though I menstruate every month - something to do with me bleeding midcycle). She said to do this for 3 cycles. I am on my 3rd cycle on Provera. I just counted - DH and I baby-danced just about mid-cycle. Am just worried. What if, just what if, there's a little one, won't the Provera harm her/him?
I am apprehensive about asking my doctor since we had a false alarm - false positive, with the delayed menses and what we thought were early pregnancy symptoms - few months back (about 3 months ago to be exact).

Answer 1

When you get to CD25, take a home pregnancy test that morning. If it's pos. you need to call your OB right then and get and RX for some type of progesterone--prometrium, vaginal suppositories, or injections until your levels can be checked. Provera brings the most risk of miscarriage due to the sudden drop in progesterone instead of actually causing birth defects.
If your home preg. test is neg, nothing to worry about.