NERVOUS AND SCARED

Aesteria
I took plan B to avoid pregnancy. I condom slipped off and was stuck inside me while on top of BF but nothing spilled inside me . But I usually suck in my waist to help reassure myself I'm not pregnant. ((Weird I know)) I felt a sharp pain in my right side of my abdomen. I'm so scared. I also took a pregnancy test and it came out negative.
Please help I'm so scared 😰😰😰😖😖😖