Help !

Hey ladies so I never been pregnant or anything. So me and my mom usually get our periods around the same time and she’s almost done with hers and I still haven’t even got mines or spotted , I’ve been feeling so weird. I’m super nauseous and I’m never really nauseous , I threw up while I was at work. My heads been hurting a lot lately. Idk.. I don’t wanna test because I’m tired of negative test but I think this time I might really be. So tell me y’alls opinions and what y’alls symptoms when you were first expecting.