No one has answered me! Pregnant or BC side effect?

Hi, so I have tried asking this on 3 other forums (WebMD, a pregnancy one, and ehealth) and NO ONE will even answer. I don't have any one to talk to because I just moved 600miles away from home....I am possibly just worrying too much and my boyfriend has gotten this into my head of being pregnant. I am 20, and living with my boyfriend. I have been on Gianvi (Yaz generic) for 2 months now. We are sexually active, and don't use a back up method of birth control. I know, not the smartest, but we also wouldn't mind having a baby if it happens. For 2 weeks now I am nauseated every time I try to eat, so I'm ALWAYS hungry but at the same time I eat a few bites and feel like I stuffed myself. Every night starting around 8pm it gets worse and as the later it gets, especially worse when I try to go to sleep, but have not actually thrown up. Sorry for this bit of info, but I have had to pee a lot, been a little constipated and very gassy (sorry!) We eat the same as we always have. I cook and we never eat fast food. Starting yesterday it is tender and hurts around my nipples, and my veins are more pronounced. I am also pretty moody. I don't know my ovulation days because my pills messed me up and I had a 6 day period, 2 days off, and another 4 day period. I am expecting the next within a week or so, so I can't really test yet. I didn't have any of these issues in my first month of using the pill, so why would it just now set in? My boyfriend isn't mad if I am....he is actually very excited and supportive. The main reason I am even on the pill is because my PMDD causes horrible cramps and irregular cycle, so this is to help with those things. My mom started getting sick the day after she conceived me, so early signs wouldn't be unusual.