Hi doctor. I was on the pill for two years, I stopped taking it on the 27th of Nov. I then had my period on the 30/11/2011 but on the 19th of Dec I had unprotected sex and only took the morning after pill about 43 hours later. Was I ovulating at the time I had sex or had I already ovulated? Could I be pregnant?

You will just have to wait and see if you get your next peroid. The morning after pill works well if taken with in 72 hours so I'm pretty sure you are good.