Progesterone or other causes of miscarriage

After miscarriage #2. I pushed my doctor hard on possible causes… it’s hard to accept that “the chromosomes just didn’t fuse right” TWICE in a row. Seems incredibly unfair. One of the buttons I was pushing was whether my progesterone was low. I noticed my LP had shortened after the first miscarriage… still in a normal range over 10 days, but short for me. She wrote it off and said there are no studies supporting that progesterone supplements help maintain viable pregnancies. My midwife felt strongly the other way, that if a woman has had more than 1 early loss, it’s industry practice to treat with progesterone regardless as a preventative measure.

I pushed my doctor hard on this issue again after the recent BFP. She stands her ground on it. She even said she doesn’t know what progesterone levels should be or what dosage to prescribe etc. and suggested I get my midwife to prescribe it if she could. Truthfully I’m a bit put off by her response – could she not have at least tested my levels? If they were fine I would drop it. But she refused. Could she not do research or ask a colleague about what progesterone levels should be in early pregnancy?

I’ve decided to wait until I get my second beta back. If it’s increasing normally, I’ll call my midwife to reserve a spot for me and will ask about the progesterone supplement. I can’t help but feel that my doctor’s response was inappropriate? On the other hand… now that I’ve regained some of my composure (read: am not a total emotion wreck anymore) I probably agree that the progesterone is an unlikely culprit, but still don’t appreciate my doctor’s response.

My blood work following both miscarriages showed that my thyroid level was normal, even good. So that isn’t the problem. My iron levels are low, but that’s pretty common for me and I don’t think would cause such an early loss. Did I really just get unlucky?

In the worst case scenario… if we have another loss, I have an appointment with an OB scheduled for February to start looking into why this keeps happening. Please internet universe, keep your fingers crossed that things go well this time.