Whats happening to me?

unknown

So my lower abdomen feels heavy... on ve never felt it before, it doesn’t hurt but it feels heavy and i don’t know what it is.. I did have sex with my partner and we did not use a condom. I’m not sure what it is..but it’s feeling tingly and heavy but I also have been having tons of headaches too... or maybe it’s just all in my head....any thoughts on what y’all think it could be?