Missed period?!

Hi ladies!

First I want to say I love reading all your posts they are so inspiring & helpful.

I need advice.. I missed my period this month which should have came on Feb 2nd. According to this app which I try to regularly update. Of course I’m on my TTC journey.. well I got vaccinated Jan 5 & the second dose on Jan 26. During ovulation I spotted maybe twice… & I thought it was a good sign so I just kept going. After my ovulation days I started to get sore boobs (mainly my nipples were sore to the point my bra hurt). That lasted about a week & it went away so that’s when I said.. I’m getting my period, yet it never came. I am now 8 days late.. I took a test which was negative. I spotted yesterday at the end of my day (idk if it’s bc I’m working out as well).

I’m so frustrated but also confused bc my period was coming a day or 2 early for the last couple of months. I’ve never missed a period no matter how stressed I was.

Has anyone had issues after getting the vaccine? Should I just keep waiting to test again? Thank you in advance to any advice! 🙏🏼