Weird peiod

So I had unprotected sex multiple times during my expected ovulation (ttc) and my period was about five days late. Throughout the five days I was experiencing sore boobs, dizziness, and light cramps. I even took 2 tests which came back negative. Once my period started it was kind of weird, I only had bleeding moderately for one day and the second was light, then it completely stopped. Typically I have heavy/moderate periods for about 5 days. I have zero concern for STI’s because my SO and I regularly get checked, soooo is there a reason for this weird ass period? 😂