Pregnancy questions

I had unprotected sex with my bf about a week ago. He came inside me, I’m not on any pills or iud. I’ve been scared that I might not be able to have kids, he has always came inside me and we usually do it during my most fertile days. Can anyone help me? I’ve began to feel my breast kind of rendered and nauseous, most of appetite and little cramps but I’d say is gas. Please give me your feed back 😊 P.S my period is supposed to come in 9 days.