Mazal tov on the brith of your baby!
We are sorry to hear of your tearing and the ensuing discomfort. In this case, you should perform the absolute minimum number of
bedikot: a
hefsek taharah (omitting the
moch dachuk) and one
bedikah each on days one and seven of the
clean days.
Perform the
bedikot lying down, perhaps using a hand mirror to help ensure that you not aggravate your sore areas. The
bedikah should be performed very gently and only to a depth that is comfortable to you. (To about the first knuckle is the bare minimum.)
It is permissible to immerse in the mikveh even if relations will not be immediate.
Refuah sheleimah! Please write back with any further questions.