Wonder if I’m pregnant or period coming

So I had sex 11 days before my period was due and he don’t know if he came inside of me or not ... my mood swings was very different after that day , my nipples got darker, I’ve been feeling aches in my vag and cramps in my lower stomach, I’ve been a little nausea , my back been hurting like crazy, headaches here and there , lost of appetite, I’ve been gassy and popping more, tender breast and they’ve gotten lumper like my bumps on them more obvious I took a test it was negative but it won’t be accurate right now and my period is due in 3 or 2 days I’ll keep you guys updated I just want to know what you guys think