Just need some advice

Phacia

So me and my fiancé have been ttc for over a year now. My cycles have just recently got back normal. So my fertility window started on the dec 21st. We have been having sex every other day. My ovulation day is not scheduled until Dec 25th. However I have been have some cramping on my right side for the past two days? Could this mea I have ovulated early or am I getting ready to ovulate?