I don’t know

Guys so I did a pregnancy urine test at doctors and test came back negative.. I haven’t had my period for two months now.. I been constipated, bloated, sometimes cramps?? And today I woke up kind of nauseous but I don’t know if maybe my periods coming or like I’m just thinking too much of this. I’m pretty sure a test spills come positive after 2 months right? Any thoughts I’m like 80% sure I couldn’t be pregnant too. I