missed period. BFN

ok so i am officially 7/9 days late (i hace a 32-33 day cycle) I took a test when I was 2-4 days late and am so tempted to take another test. I don't get it. I have nausea and a sore belly/ cramps 90 percent of the time. my boobs and chest is sore. I'm an emotional wreck, I mean my boyfriend told me he loves me wich is normal and I cried. I have spent 2/3 weeks not really inter3sted in sex and last night it hurt. my partner is incapable of going 2 days without sex and so PvP this is hard on us cause it makes him angry. He doesn't seem to get that I don't feel well. He knows af is late and that I also got a bfn and says he doesn't think I am pregnant anyway. we have been trying for 4 and a half months. ... I'm thinking I should get to the doctor as I haven't missed a period since I was in high school.. HELP ?TIPS? IDEAS ? POSSIBILITIES ?,