What is your opinion on my situation?

I take my birth control every day, not consistent times every day; but I don't miss it. My boyfriend and I use the pull out method every time we have sex. We do have sex very frequently. Today will be my 3rd day on the placebo pill. I always start on the 1st day off of my active pill and am never later than the 2nd day. I have very tender breasts to the touch, but bras don't bother them. I am also urinating frequently. I threw up randomly 2 days ago, but haven't felt queasy besides that. I don't really have any cramps or bloating either, which I usually get. I took a home test this morning that was negative. I am just wondering what you think. I know pregnancy is possible and all I can do is wait and test, but what is your opinion?