Help! I'm scared, what should I do?

Last weekend I was swimming in a river with tons of fish. I was having a blast until my bikini bottom fell off and a fish swam up into my private parts and started wiggling around. It tickled, so I let it stay in there for awhile. But I forgot about it and we were almost home when I remembered, so I didn't tell my parents about it, I planned to remove it while I was in the shower when we got home that day, but I forgot again. I just remembered because I haven't had my period yet! Please help me! The fish isn't wiggling anymore, I think it might have gotten me pregnant! It's stuck! What should I do? It was a big salmon too!!!