Question...

I just went to my ob for a check up and I asked some questions, my son is about to turn 1 on the 25th and we are trying for number 2 and I'm still breastfeeding and she told me it's 1 in a million chance to get pregnant while breastfeeding is that true?? I thought this was our month for sure! She said u don't ovulate, glow says I'm ovulating now and yesterday I had ovulation cramps I think it hurt..