I was on a mid dose birth control, trying to change from a higher dose, Ovral. I was doing fine for the first week of the second new pack and then started to bleed. I called my doctor and asked to change back to Ovral, the nurse said that I could go ahead and start the new pack now, so I did, I started the pack that Thursday without missing any pills or taking any time off from the old pills (i am normally a sunday starter, so I started my new pack on the same day that it would have been if i had been on this pack the entire time, skipped the first 4 doses and started on the thursday pill, but did not miss any actual pills between the old pills and the new ones). My question is, do I take this pack like normal, start a new pack on the sunday i would normally (which would me that I did not take the first 4 days of pills, since I had taken the old pill those days), or do I take the entire pack and have a new start day (would be thursdays)? Just wondering about pregnancy protection, I am currently sexually active and do not use any other method. I have not missed any pills, just started the new pack in the middle of the old pack and just wondering what to do and what is the best to do. Thank you