I stopped taking birth controls pills after my last cycle. I was expecting my period over a week ago, but it never came. i am not worried I could be pregnant my husband and I used condoms for the last month. I have also had a few other weird things going on. I have gained at least 5 pounds this last month(thought gettin off pill would help me lose weight!)I wake in morning with tremendous headaches, have terrible hot flashes all times of day and night, and heart palpitations so bad I feel like my heart is going to burst through my chest. Are these normal reactions when stopping BC pills? When should I expect my period??