Heeelp!!! Avoiding pregnancy

Valeria
1st one dollr tree 6 days before my expexted period. we had sex on may 2nd the condom slipped nothing was on the condom 3 h later i took plan b and 2 days later i started to bleed like if it was my normal period. just to make sure i took a hpt amd came out positive i took one yesterday amd it came out negative
 nd forst response digital 1 day before my expected period