Starting the pill on Sunday- what should I expect?

I just started taking birth control and it made my breasts hurt as well as grow a full cup size. I feel like I have gained a little weight too, but not anything terribly noticeable. You also aren't protected until after using the birth control for a month. You should take the birth control daily at the same time. That's what my doctor told me, also the BC should come with a manual that will tell you what to do if you miss a pill or the normal/abnormal symptoms. Anyways birth control tends to affect people differently. Hope I helped! :)