Normal ?

I had a baby sept 6 2016 at 37 weeks . He weighed 8 lbs 6 oz 😍. Anyway my husband and I have had unprotected sex a few times . I'm not on birth control . I had a regular period October 23rd and it was super heavy and lasted until oct 30th then stopped my husband had unprotected sex the 29th 31st and nov 2nd . On nov 2nd I had some pink blood after . & since then I've had some brownish discharge & sometimes it's brownish mixed with white / clear discharge . And it's mucus like . Is this normal ? Sorry if tmi , I had a c section idk if that effects anything ?