Body been different

Okay so like this whole month has been off for me, I just started seeing this guy, we had sex a few times unprotected, but like I’ve had slight cramps for like 2 weeks already, and when I say “slight cramps” it’s like they aren’t cramps but like I can feel like this pinch of pain but it’s not like bad it’s just there, and then today I started spotting but it’s like not like a blood red it’s a little lighter and is nothing like my normal period and my period isn’t due for another weeks so I really don’t think it’s my period and usually like a week before my period my nipples get sore and they are so Idk I’m just so confused right now I just need someone to comfort me😭