Ovulation and Progesterone

FINALLY! After much anticipation, I have finally ovulated! This has been quite a suspenseful cycle so far. (Probably because it is my first cycle since my miscarriage.)  I had a positive OPK on cd 17, and I usually get a temp rise the day after a positive OPK...but on cd 18, my temp stayed low. Then, much to my relief, I arose this morning to a nice temp jump from 97.4 to 97.9. Whew...I think I finally O'd this cycle. We can now rest and relax. Sometimes it feels like a major nerve-wrecking, on the edge, competition...waiting, timing, ...and then O happens and it is as if all of the pressure is suddenly lifted. At least that is the way I feel. The two week wait doesn't stress me out nearly as bad as the first half of my cycle. I just sit back and watch what happens. Sure, I obsess with the best of them...but it is so nice to know that I don't have to do anything...I don't have any control...so I can just sit back and settle in for the ride. Which brings me to the real topic of this entry. Progesterone. I don't know what to do. Last cycle (before I found out I was pregnant) my blood test showed low progesterone. As soon as I found out I was pregnant I called our RE and at my request he prescribed progesterone, though he said it was not necessary. He said that low progesterone is not the reason for miscarriage, but rather an indication that the ovulation and/or pregnancy was not right to begin with. I have confirmed this analysis on a number of website. However, there are so many women who are positive that progesterone supplementation save their pregnancies. So hear I sit, one day post O, trying to determine whether I should go ahead and start progesterone supplements, just in case. One reason that I don't want to is because if you do this too often, it can cause anovulatory cycles (as the progesterone builds up in your system) and we don't really know for sure that it is safe for the baby...and why take it if not necessary. (It's really messy and gross too). But...if it could prevent another miscarriage, it would certainly be worth the risk and the mess. I just don't know what to do. I have been taking a B complex to help my body produce its own progesterone. I will have to keep contemplating this one...I have a day or two to make up my mind, as they suggest that supplementation begin at 3 dpo.