opinions please???

Okay so I'm on birth control and have been for 4 months now. Fixin to start my 5th pack in 2 weeks but here recently I am always feeling nauseous and getting sick. My and bf are sexually actively and sometimes he doesn't pull out. Should I be worried? Do you think I should test? Any opinions are appreciated but please try not to be negative. After all we are all adults here. Thank you💕