Ok so.. I’m on cycle day 50 I’m 18 days late for my period no sign of my period coming didn’t get it all last month and still nothing this month, but also I don’t feel pregnant if that makes sense I do however sometimes feel nauseous but it might all be in my head I’m really confused at this point I took 4 test one was a fffvl and the other 3 where all negative.. could it be a very late period or is this a sign of pregnancy 😩 I really need help I’m a smoker (weed) and need help so I can stop smoking if I am idk I just need some advice..

I’ll post a picture of my fffvl in the comments