Very worried!!!

I dont know wat to do, i am 25 days late on AF. I did a test a while back and it was negative. Before having my daughter which shes 2 years now i was very irregular. And after i had her i was on point. I have a doc appointment the 14th and im so nervous. Im scared to do another test and being negative. I kinda feel pregnant plus my stomach is kinda huge idk if its just fatness. Well wat can i do? Should i just wait for my appointment??? Thank u ladies.