I'm on the first week of my combination pills pack (Called LoEstrin). I started the pack on a Friday. I took Saturday and Sunday pills at regular times (7:00am) but Monday I took it 5 hours late. then on Tuesday I took it 4 hours late. then on Wednesday I took it 2 hours late. I had unprotected sex on Wednesday night. should I be worried about pregnancy?? today is Thursday and I took it at regular time at 7:00am.