My periods are very irregular. So irregular they just seem to come and go when they please, sometimes I will have them 2 times a month and sometimes I wont have them at all for that month, sometimes they will be in the begining of the month, sometimes the middle sometimes the end. I can never really tell. How can I guesstimate my ovulation without going out and spending alot of money on tests every month? Anyone know any good ways? Thanx for the help