Hi thanks for your question.
Relax there is nothing to worry.If bleeding and pain is not associated with decrease in hearing your ear drum is safe and you have injured canal of your external ear.Just keep your ear dry,hopeully injury
will get healed of itself without any intervention.This injury is not going to effect your pregnancy
and vice versa.Consultation with ENTsurgeon is encourged to rule out drum perforation.
Hope this answers your question.