Super stressed

So I had sex Monday afternoon around 4:30/5, the guy used a condom and he came inside the condom that was inside of me, I'm sure that it didn't split.. However he rubbed against my vagina before he placed the condom on. I freaked out so the next morning I went and got birth control (morning after pill) and I took it around 10:30am. I'm so worried about becoming pregnant, I'm only 16!! I haven't told my mom cause she'll disown me as the guy isn't my boyfriend... I've been feeling sick and my stomach is getting hard just above the top part of my vagina! So basically I'm so scared, is there a possibility that I could be? And is it possible to get symptoms this early? I'm really in need of advice because I have nowhere to turn...  Please help! :(