Feeling Sick

I am 23 years old, ive been on birth control for many years, i dont always take them at the same time everyday and my boyfriend and i use condoms MOST of the time. Ive been feeling sick and ive been pregnant 3 times already so im a little anal about pregnancy. But i feel tired and my stomach hurts, im bloated, constipated, and dizzy feeling. Im not gonna get my period for another 2 weeks. can i take a pregnancy test anyway? we had sex without a condom and he pulled out then when had sex after he wipped himself off, is that safe?