Since starting AF at age 10, the only cramping I had was serious cramping during AF (before getting on birth control was 7 days, after getting on birth control was 2-3 days with mild or no cramping, now off birth control still 2-3 days), and mild cramping around ovulation, 2-3 days max. We started TTC in September and since then I'll have AF and ovulation cramps, but now, I'm cramping from ovulation through until AF. They will start in early to mid afternoon fairly mild and through out the day get worse until I go to sleep at night.