I Was On My Cycle Last Week And Got My

I was on my cycle last week and got my shower not sure if I put a tampon in or not because my husband and I had some alone time while our daughter was at grandparents so we of course had sex. I don't think I did but I don't remember. He doesn't remember feeling the tampon or string when we had sex but he isn't for sure. Ugh. I've stressed all week. I keep replaying it over in my head trying to remember if I put one in or not. I don't know.