pregnant? ease my mind!

so, I took a test on January 7 and it came out negative. I am halfway through my 84 days pill cycle and me and my boyfriend have sex without condoms and he pulls out. My boobs have been sore but I recently made a change to sleep braless, and the past two days I have gone to bed feeling sick but after I eat a small bite of something I feel fine - I try not to eat past 7 and Iat down at 10. Anyways, I've took my pill everyday a few minutes apart besides one day that was 4 hours late.