Hi thanks for posting your health query.
At the outset I advice you to relax and don't be in tension.Negative blood groups don't affect the conception and carrying of pregnancy
The problem that is managable is:
when wife's blood group is negative and husband blood is positive and vice versa.The condition is called as Rh incompatibility.There is no sffect on mother but baby is victim of Rh incompatibility.The first baby is not effected at all.All babies after first are effected and that too in mother's womb.
It is preventable condition.
As soon as baby is born ,baby's blood group is done and if the blood group of baby is positive, Inj of anti D is given to mother to prevent Rh incopatibility in feature pregnancies, that is 2nd ,3rd and so on.
Since your Rh negative
and your husband is positive.Blood group of your baby will be tested after delivery and if it turns out to be positive .You will have to recive inj anti D .
Since you have recived anti D after abortion
, your 2nd pregnancy your baby will not be effected .
Hope i answered your question.