I posted a thread last week as I had a v heavy period a week early (not the first time it's happened). Period lasted about 3 days then seemed to stop for about 12 hours only to start again. Then a few days later I started getting a niggle in my lower abdomen which felt as though I was ovulating and which has now turned into low slung general ache. TBH I actually feel pregnant which shouldn't be the case as I am a faithful wife and my dh has had a vasectomy (7 years ago) and so scared am I of getting pregnant I actually avoid sex at ovulation time, which brings me onto the question, how soon is it feasible to ovulate after onset of period?