What do y’all think?

I am 13 DPO, I’ve been using the restroom a lot more, nauseous every now and then (starting to feel more frequent), and have had mild cramping. I took a FRER test yesterday and it was negative. I don’t believe that I am sick because I just got out of quarantine Sunday because I had tested positive for Covid last week after my son’s quarantine ended. We have been trying to get pregnant for 3 months now. I’m supposed to start my period on the 1st. My cycles are 33 days long each, and I was keeping track of ovulation but I ran out of strips last month and keep forgetting to buy more. Let me know what y’all think, please and thank you! Much love to all of you❤️.