I think im pregnant

Celest

So lately my stomach has been feeling weird and different like I feel a little nauseous at some points, but I think it could be from all the tamales I ate, but I've never had this problem before when I eat tamales cause I would always feel fine.

Me and my boyfriend had sex 3 days in a row a few days ago and he pulled out on all three times. Could I just be feeling bloated, getting a little nausea, gas and a little bit if mood swings because im going to start my period soon? Or a sign of pregnancy? Please I need advice.