Endometriosis
"I had an absence of periods for 6  months, I&#039;d be lucky to get one period a year. I thought something was really wrong with me and I was freaked out. Luckily I did a 10-day hormone therapy thing and then got put on birth control. You will also feel crappy the day after you take your first pill. It&#039;s normal, your body isn&#039;t used to it so you will feel crappy. I had such a bad headache that I had to leave work early. But besides that, Sprintec has been great for me! I have a period at the end of every month, for some reason it&#039;s the THURSDAY I start the white pills. The only side effect I&#039;ve had is a yeast infection because my body wasn&#039;t used to the increase in estrogen."