My boyfriend of 6 years have sex about 5 times a month, but lately for the past 3 months I just can't have sex. I've been to tired or it would hurt so bad. Luckily my boyfriend is fine with it. But I was thinking I'm pregnant. The last time my boyfriend and I had sex, I was on the pill, but I've also been noticing my stomach become chubbier also.. What do I do? Should I get a test?