I had sex on my ovulation day.a week after ovulation I started having cramps,like I was coming on.everytime I went to check there was nothing.I usually cramp with a warning and then af is here.I came on 2 weeks after my ovulation.and my period lasted for 2 in a half days.. it usually lasts for 5-6 days.. for a day in a half there was nothing.the next day when I wiped.. it was brownish.. the next day nothing.. then the last day when I wioed.. it was a very light pink.. (I never cramp after my period).I had light cramping for a whole week in a half.. now I'm ovulating again.. now my breast nipples hurt... whatcha think.. lol

I think you will be fine. Periods can be different from one month to another. Don't worry about it... but, just to be sure you might go to your gynecologist just to make sure that you are OK.