SO CAN SENSE MY OVULATION!!?

OK ladies for this is the second time my SO told me that Glow was wayyyy off with my ovulation. It sent a notification to my phone that I was ovulating today, he read it and told me it ALREADY HAPPENED three days after my period(June 3rd) . !!Why didn't he tell me!? I did feel the O pain but I put it to the weird light period I had. Now that I remember, he was all over me those days (he's never on me) .I asked him how he knew he says I smell different. Oh and we bd this morning and I got the worst cramps in my uterus ever. I had to stop him and he tried being sweet rubbing it,but unfortunately made it worse I slapped his hand away:(. The af like cramps lasted about 45 mins .