Hi, Thanks for the query. If you got withdrawal bleeding after stopping progesterone pills, there is less possibility for pregnancy. Progesterone tablets can affect next few menstrual cycles and can lead to little bit irregularity. But it may not have any major effect on infertility. In the next cycle, track the ovulation and plan intercourse around that period. For more details : http://srsree.blogspot.com/2013/10/ovulation.html This will increase the possibility of pregnancy. Start taking folic acid tablets from nowonwards. Take care.