After I had a misscariage I was talking to a naturopath in a health food shop who reccomended I use a progesterone cream on cub fossa of arm (where it bends) twice a day until 2nd trimester. I did this once I was successfully pregnant again (took 12 months to conceive again) and DS1 is now 3 and a bit!!

I had no side effects but I was scared to stop using the cream so had to wean myself off using it.