I have endometriosis and haven't had periods since 2000. I stopped taking my hormones in 2008 and was pregnant within 2 weeks, a complete, yet welcome fluke! I started to take hormones again within 2 months of giving birth as despite breastfeeding, I had heavy and painful periods. I'm ttc again and stopped taking the mini pill before Xmas and have just got a period today. I had quite intense pain a couple of weeks back and wondered when this so called MITTELSHMERZ or ovulation pain begins, is it a few days before or during ovulation or is it different in everyone? I only have a short window in which to get pregnant before the pain kicks in again so would appreciate any info. Thanks.