confusion

Al
Okay so this is the second one I've taken both came out negative and I took the last one a week ago like my period is late 11 days and I'm on the mini pill so it's common to gave an light flow/irregular flow / missed periods plus my periods are already kinda irregular too but like last night I was getting really bad cramps and then this morning me and my boyfriend were having sex and I started to bleed but like its so light and it's basically stopped so idk if it's my period like I'm just really confused as to what happening to my body like where's my period man lol has this happened to anyone before advice would be greatly appreciated thanks