Never been late...

I've never been late really and my periods are irregular but they always start every month. My cycles are between 32-36 and its now 43 days and haven't had my period. I've been having cramps like my period is gonna start but nothing. I took a test 3 days ago and thought I seen a very faint faint line but took some more after and they were negative. Idk what going on but. If I'm still having these cramps but no period in gonna make a doctor appointment. Anyone else on the sane boat??