I am worried

I always get so worried but me and my bf didnt have sex but he did get like 5 thrust in before i said i wasnt ready( not a virgin i just wasnt feeling it with him ) he didnt cum and ik pregnancy thru precum is possible but idk. Before i had my period and it stopped after that night and now i have a pink discharge. Could i be preg its been eating me up i cant believe i forgot about condoms.