Can woment get pregnant after getting their fallopian tubes cut?!?

I had my baby on Nov 22, 2010, and on the next day I had my tubes cut. My periods are very regular, I could say that they are perfect on timing (28 day cycle) My last period was on April 24 and on May 8 I was supposed to ovulate. On that night I started having painful cramping and thought it was due to me ovulating so I went on to sleep, but like at 4 am I woke up to terrible pain in my pelvic area it felt like labor pains!! Anyway so I went to the hospital and they said that I has an mild infection. After that during that week I started to have light brownish spotting, never happened to me in between periods. Yesterday I had a bit discomfort in my back and very mild cramping and woke up again at 4 am with blood stains. So I thought I got my period and went on and put a pad on, but this morning when I woke the pad had no bleeding whatsoever only brown spotting, and its been like that during the whole day. I have been moody these last couple of weeks and the day that I had the bad pain I threw up 1 time and have been nauseous a couple of times. Anyway what I want and need to know if there is a possibility that I can be pregnant, and if so how if I have my tubes cut??