Anyone taken prometrium or clomid??

Hi ladies, I've been reading a lot on these boards, but haven't really posted that much.  I enjoy your wisdom!
My question is this:  I just finished up prometrium today(200mg 2x/day) and am waiting for AF so I can start clomid (50mg days 5-9).
Does anyone have any idea on approx. how long it will take me to get AF after stopping the progesterone?
And also, why do some women take clomid on days 3-7 and others on days 5-9?
I have suffered from irregular periods for as long as I can remember.  They were only regular when I was on BCP.
We've been TTC for nearly 8 months now, so hopefully this clomid will "kick start" my body into ovluating.
Thanks for your help!

[Poohbear03]

You should start your period within 10 days of the last pill.

From my research, it's really Dr.'s preference as to 3-7 or 5-9. I take it 5-9. My Dr. refuses to give it any earlier then that.

I to have suffered irregular cycles for about 10 yrs, that'w why the clomid for me also. First month at 50mg, I ovulated on CD17, Second cycle at 100mg, I Ovulated on CD18 so it is DEFINETLY shortening up the cycles!!!  :)

Be prepared for hot flashes and headaches though. Everyone is different, but those are the main two that I experienced. Funny thing was when I took 100mg, I didn't have as many side effects as with the 50mg....  

Good Luck!!

[chaunnie]

LAST MONTH I HAD TO TAKE THE PROMETRIUM 200MG/DAY FOR TEN DAYS WHEN I GOT TO MY LAST PILL MY CYC STARTED AND CLOMID I TAKE THAT TO I JUST FINISHED THE FIRST CYC I TOOK THAT ON DAYS 5-9 I WAS ON 100MG BUT I DID NOT OVULATE MY DOCTOR WOULD NT GIVE IT ANY EARLIER WHICH I AM GLAD BECAUSE FOR ME I AM STILL BLEEDING ON CYC DAYS 3-5 AND ON DAYS 5-9 I AM FINISHING UP ON DAY 6 GOOD LUCK I AM LIKE U TOO I ONLY HAVE REGULAR PERIODS IF I AM ON BCP BE PREPARED FOR THE HOT FLASHES/HEADACHES BUT IT IS WORTH IT KEEP ME POSTED