Post masterbation red discharge ...

Sooo I masterbated and when I took out the little thing I used there was almost like a reddish discharge, kinda like blood, and I went pee like 30 minutes after and when I wiped there was like a very light colored blood that was on the toilet paper. This has happened to me once before and I honestly don't know if I should be worried. I'm very tight down there sooo maybe that could be why...,?