Someone please help

So I had sex sept 13th and got my period for 4 days cramping all that. I got a cold I’ve been really sick for about a month. I had sex again recently . And we used a condom both times but not on the pill. I keep feel nauseous and throwing up early mornings. Could I be pregnant from first time even tho I got my period ? I’m very concerned I don’t have access to a test.