Do I need to be worried???

Okay so I was messing around with this guy on July 8th, we didn’t have sex but he did come and it was sorta near my vagina. I don’t think any got inside of me, but right afterwards I went to the bathroom and I also took a shower and washed. My period, counting today is two days late; all I’ve had is some really light cramping. Do I need to be worried???😩😩

Also I’m not on any bc right now.