Ok please only serious opinions

The last time I had sex was around May 29/30 it was unprotected but he pulled out and didn’t actually cum.

The next two months i did get my “period” but I kind of was worried if it was my period or implantation bleeding. From what I remember it did seem like my period as usual but am not fully sure cause I don’t track my symptoms or how much flow.

Fast forward to today and my period is 8 days late (haven’t had sex since the same May 29/30). So I decided to take a clearblue pregnancy test but it didn’t work and just had a blank screen. Yeah so I’m kinda worried I’ve never had a period this late :/