Need help....I missed 3 days in my birth control pack and then obvs I got my mock period but then when I started the pill again it went away. My breast are extremely tender and hurt. As well im nauseas and really tired my hunger has gone up too. Is it pregnancy or birth control, I have been pregnant before but I was off the pill during this time. My boobs have been getting bigger and tender as well! Please help!!! I have a week left of regular pills before period.