Does anyone have any experience with this? I am advance maternal age- 38- I have two sons and am pregnant (7.5 weeks) with my third, I miscarried 2 summers ago at 12 weeks. I had a sonogram this week and everything looks good with the baby but my progesterone came back low at 13.5 (in the normal range but the low end) so I’m taking progesterone now - does anyone have any experience with this?