The general guidelines around diarrhea is 5-6 trips/cups of complete liquid stool within a 24 hour period means your absorption may be affected.
You probably didn’t need the plan B because you could’ve missed a pill and be completely fine. Please be more mindful of that in the future, as emergency contraception has a huge amount of hormones which are very likely to cause side effects for the upcoming weeks to even months.
Just letting you know that the pull it method does not achieve anything in regards to preventing pregnancy, if you’re nervous about that you’re better off using condoms xx