What do you think?

I took Letrozole this cycle and used opk’s to give me an idea of when I ovulated. I got a super positive opk on the 10th, and my husband and I were able to have sex right away.

On the 18th I started getting flu-like symptoms (temp of 99.2-99.4, fatigue, nasal congestion, cough, sore throat, headache) and I also got very constipated and dizzy. I’m feeling better now, and got a negative COVID test, but the constipation, dizziness, and temps have not gone away. I’ve now also had sore boobs and mild cramping. I thought my period was coming, but it’s officially late.

I also took pregnancy tests yesterday and today. Yesterday‘s was negative, and today’s I’m pretty sure was an indent. Is it possible I’m pregnant and it’s just not showing up on the tests yet? I know there isn’t much I can do besides wait and retest again in a few days, but I thought I would have gotten a positive test by now. What do you think?