I had my off week May 1-7, had a strangely light 2 day period like clockwork may 3 though. When u started the pills again May 8, I was finishing up the pack I was on. (I have 21 day active junel pack and adjust to about 3.5-4 weeks of pills). I just finished up that pack and started a new one Tue. Yesterday in the shower, I felt a weird pop and gush of blood, then that was it. When today I wake up and when I go to the bathroom, a good amount of blood again. I'm only on day 20 of pills, so it's not like it's been to long so I don't think it's breakthrough bleeding. I didn't find any recalls on BC, just strange that it's 2 days after starting a new pack so I thought maybe defective pills? I also just got back from Europe Monday, could that effect my cycle? Had this happen to anyone else before, was there a concrete reason?