Hello, I'm looking for help regarding prometrium. after a D&C; I had 3 AF of 39 days apart then when they 4th was due it never did. being 50 days without on I went to the doctor who told me to take prometrium for 10 days to get a period then take it one again mid cycle. Well I'm on my 4th day of prometrium I started a heavy period and only lasted 3 days. Should I continue taking the rest of the prometrium until the 10 days are done? also if my period are not regular how do I know when is my mid cycle to start the other 10?? please help, I really want to be able to have another baby. I would really appreciate any advice. I hope I have been clear, english is my secound language.