nope. happens all the time.
the problem is if mom is negative and baby is positive-then you need to be treated to keep your antibodies from attacking the baby at birth. Since you are + you are fine :)
I'm a husband with type A+. My wife of nearly ten years has a blood type of O+. We have tried separately to have a child with no results. The only two times we were able to conceive in pregancy resulted in miscarriages