Inlove With Someone With An Incompatible Genotype, And Indecisive About Marriage

Hi my fellow NIDs and NINs, your candid advices and imputs are needed.

My Cousin; with genotype AS, is engaged to be married to the love of her life, and just found out that her beloved, is Genotype AC.
The marriage is for next year February and a lot of preparation has gone underway. The groom to be just found out he is AC, after he went for a thorough medical check up; all the while he thought he was AA( due to the result of a blood test done years back).

Now the delima is should they take the risk, get married and possibly bring fort a sickle celled child( children) or deformed cell child?.Does anyone know of any drug that can be used to prevent or under research to prevent the conception of a sickle celled issue? Does any one know of any SC person?

This is a decision between love and comon sense! 

Except by divine grace. I mean the divine power of Christ on the cross of calvary.
Medically it is advised that are not compatible and cannot get married.

The question is do we trust in God and believe the medical report?
As for it is only by divine grcae. Yes they can escape but what is the probability?

I would seriously think about this situation before i venture into it.
Being the mother of a Sickle Cell child - she was actually diagnosed 3years ago.

Its a real hard illness but God is actually helping us that it was even diagnosed - she has gone through so much that when her 'crisis' begins, i feel like crying cause she is so much pain.

If i had to do it all over again, i wouldnt want to subject her to all that pain, i had to leave her dad cause of that (along with other reasons). I was told ma blood type was AA but obviously they were wrong.