Hey! I recently switched my birth control to a lower dose of estrogen because my last pill was causing a lot of irregular bleeding. My doctor told me since I have bled for about 5 days on my last pill packet, I could start the new one the next day. I however did not use protection the first week because she said it would probably be okay since I am not stopping the pills at all. The first 21 days went smoothly with no problems and now when I'm on my sugar pills (last 7 pills) I am only experiencing light brown discharge and no period has come yet. I take my pills at the exact same time everyday so I don't believe I am pregnant. Could the late period just be due to hormonal change of switching birth control all the sudden?