when my periods were regular I used to get ovulations pains "mittlesmerch" the day before or the day of ovulation.
since they've gone all screwy I don't get any pains that I can pinpoint (but then I do get a lot of random cramps so who knows lol) but I turn into "scary dragon lady" right around when I believe I'm ovulating.
I turn into a complete b*tch - never really had pms or the like but oh boy when I ovulate it's not nice lol
**edit to add**
my ovulation "mood" seems to last for about 4/5 days