Don’t know if pregnant or not

Tiana

So August I got my mirena out and around September/October we decided to start trying for a baby.... 😊 I had my at least two period after August but none since then I’ve took pregnancy test (2) and both negative. I have been a lil nauseas then usual, backache like crazy, next part a lil tmi but a lil constipated, peeing every 30minutes, Idk if this is just me or something else I need up on maybe what I should do, it’s also been a month since my last period. They stopped right after we started trying. What should I do??