I was 7 days late (never before) and took several negative pg tests. Dr. hasn't gotten back with blood test. But I don't think I am PG so when do I ovulate? my old date or the new one?
it will probley be 12 to 14 days after the first day of the period you got. your new date.
to talk science- supposedly it will be 12-14 days from your usual date.... However, you won't really know if this is your "new usual" date or not for another 3 months or so. This is the problem with irregular periods...With predicting ovulation in general. The best thing you can do is do Basal body temp/cervical mucous charting and/or buy an ovulation predictor. Sorry I cant give you a definative answer but unless we figured out exactly why you were late and did a whole bunch of math and history and possiably even exam/tests there is no way to say for sure.