Can I get pregnant while I'm breastfeeding?

Yes, but... Breastfeeding "birth control" is called lactational amenorrheal. In order for breastfeeding to be a form of birth control, your baby must be under 6 months of age, your should not have had your first period since your delivery yet, and you need to breastfeed every 3 hours during the day and no more than 4 at night, exclusively. That's a lot of conditions, but it is effective when they are met.