So my doc gave me a blood test after a year of not conceiving. Turns out I have virtually no progesterone. I had a positive ovulation test on Sunday but the pharmacy just filled the script today, Saturday. It's 70 bucks for 15 day supply and if I do get pregnant I'll have to stay on it through the first trimester. I figure it's definitely too late to take it now and might as well use it next month instead of wasting 70 bucks. I'm getting an ultrasound on cycle day 10 to see if there's anything else going on. This is frustrating but I'm glad to be getting some answers. Anyone have experience with prometrium? Any advice?