My Boyfriend And I Had Genital Rubbing. Without Clothes. We

My boyfriend and I had genital rubbing. Without clothes. We did it a lot of times. He also fingered me and used his mouth on my vagina. And I too, to him. He inserted his penis on my vagina for a few minutes without a condom but he didn't ejaculate inside me. Then we had sex. But the condom he was using left inside my vagina and he managed to pull it out. After a few days, I've been feeling really weird. I'm getting tired already and I don't eat food that much. I also hated meat that was grilled or fried because it made me nauseated. Now I only eat less and I'm fond of fruits. And I've been experiencing a lot of headaches and sometimes when I'm walking up the stairs, it's getting hard to breath. I don't know what to do. Is there a chance that I will get pregnant?