Advice

It's playing on my mind and is getting me nervous. I had sex today and after sex me and my guy realised that there was cum over and around my vagina so immediately we got worried thinking the condom split, but to make sure we filled it with water and there was no holes or anything. So was it me because I didn't feel anything come out and I'm worried that some how it might be his and I'm gonna be pregnant. Advice pleaseĀ