I’m a week late

Lita

So me and my boyfriend knew at first sight it was love fast forward through first date. Lots of alcohol and intimacy without a condom turns out I was ovulating that day no idea at all had got my period may 23 and we had sexual the 04 of June. Fast forward to month of June I had a day of spotting around the 14th but that’s it not a full period I normally have medium bleeding and it last 3 days I have taken pregnancy tests and there all negative what is wrong with me?