Please help a gal out ✨ worried and confused

Hey guys, today is my ovulation day as it says here on glow I ovulate today, but I tested on an ovulation strip and it has come out negative? I've very confused 😥

I've had mild twitches on my right side of my stomach I wouldn't call them cramps was more like a burning pulling cramp it wasn't that sore just unusual

I feel very emotional and tired

I've had unprotected sex all month

And I don't think it's possible to be already pregnant