Confused ?!?

Sarai

So I took this test last week and I think it means positive I was told It was. But who knows maybe I’m going crazy. But I’ve tested several times after at different times of the day and I got 1 other faint line and another that said positive BUT!!!!! Now all I’m getting are big fat negatives. And I still haven’t had my period yet. Has this happened to anyone else and also I have a very irregular period. Just need some insight please.