Questions and I need answersss(pregnancy)

So I had sex with my boyfriend last Tuesday (March 5) and he had cummed inside of me. Then it had been a week and sum days and I’m starting to get symptoms. I feel like I’m gonna throw up but can’t (his mom had the same problem when pregnant) my breast hurts sometimes , I feel bloated , and I get headaches. But when we had sex wit was no where near my ovulation date. Can I still get pregnant? Can I be pregnant as we speak? I don’t know what to do.