Hi I Have A History Of Irregular Periods But I

Hi I have a history of irregular periods but I always get one between 6-9 weeks. It's been over two months since I've had my period. My stomach has looked bloated everyday for the past month and after I eat its grows even more. Bloating is normal for me but not the extent that I'm having it now. My stomach comes out very far. Im having trouble going to th bathroom but pee all the time. I keep having that feeling like my period will come (cramps, sore/changing breasts) but it's not coming. I've taken at home test and a blood test with both negative. I don't know what to do if I am convinced that I am pregnant but the test don't show for what I'm feeling. I want answers ASAP as I smoke and if I am pregnant I can take steps to care for the baby and if I'm not pregnant I want my period to come!!