I too, was just prescribed Prometrium. Only thing is, I have to insert them vaginally....
My doctor told me to start those...3 days AFTER I ovulate. I too, am a little but unsure how it's suppose to work.
They are 200mgs and I have enough for 30 days.
I'm currently on my second cycle of Clomid as well.
If anyone has any info on this for us...it would be great, because I too am lost.
I am taking vag prometrium too, you have to take it around ovulation - I am starting it on day 16 - (I generally ovulate bewtween 10 - 14) and I will take the prometrium from day 16 till I get my period. (until I conceive!!)
Hope that helps - they also recommend using the suppositories at night.