16 days late!! SOS

So I’m 16 days late for my period and I’m lowkey freaking out! Am I pregnant or not? My bf and I haven’t had sex but we’ve definitely fooled around and his cum was for sure near my vagina.

I thought it was just an irregular period but now I’m kinda of freaking out

Are there any things I should look out for? Like signs of pregnancy? Or should I just get a pregnancy test?

-a worried girl not ready to be a mom

UPDATE: around the time I was supposed to get my period I got regular cramping and soreness like I always did before a period but only got lots of discharge. I really don’t want to be pregnant omg