If your blood type is postive would your rh be postive...n this isnt my first baby so wouldnt it have been told to me before if i was rh negative
You probably have RH negative blood and if father has the same blood type it can cause problems so they will give you shots to help. Nothing too serious as they are catching it.
Maybe to check rh compatibility, and to test and see if he is a possible carrier of any genetic issues.