Advice?

I had my mirena iud removed the 15th December as I am trying to conceive, I last took a pregnancy test 2 days ago and it was negative, I have a butt load of symptoms but unsure if it’s just period or pregnancy? I was supposed to start my period according to the app 2 days ago 🫠 is it possible I am pregnant and just testing too early or just my period giving me hell? 😅