I am 5 weeks postpartum from a csection.4 days ago i had protected sex but the condom broke so the next afternoon i took a plan b pill. last night i had brown stringy discharge when i wiped.today i had a mix of brown and red blood. am i pregnant?

Irregular bleeding: Plan B is an emergency contraceptive that contains high levels of hormones which, taken after unprotected sex, prevents fertilized embryo's from implanting in your uterus. The high hormone levels disrupt your menstrual cycle and can cause irregular bleeding. This can be as little as spotting or discharge or as much as a full period. It will affect your body differently each time you take it.