Cramps? Idk when I'll have period

So I had a lap done the 14th of this month I was suppose to ovulate like the 19th but I believe it was delayed from the surgery. I ran out of opks but had some cramping towars the left and lots of cm on Monday the 21 so I would assume I ovulated. Anyway last 1/27 I had cramping again but towards the middle of my pelvic area. If all things goes all right I'd starting my period anywhere from Feb 2-6??? Wonder when I could possibly take a test. We had sex Jan 17, 19, 21, and a couple days after that.