What do you think?

So i had unprotected sex a few weeks ago and i am usually on the pill, but i had to stop for about five days that week. We used the withdrawal method, but of course pre cum is always a possibility. So this week ive been feeling bloated, eating more, having headaches, and having some cramps that feel a little different than my regular period cramps. But two days ago i took a test and it was negative, but i still feel a little off. What do you think?