I think that during the time of treatment phase will come where rehan will need bone marrow of his sibling and at that time geet will ask piya to have baby with maan who can save rehan's life or he can try to be again physical with maan to become pregnant again to save life of rehan it can be possible-
Dia, if Rehan needs bone marrow from his siblings then Geet can be pregnant with Maan child for Rehan's sake as she will not have any choice but for that she does not need to sleep with him. It can be done with IVF treatment. Today medical science so much advance that to get pregnant woman does not need to sleep with man. she can go to sperm bank, get sperm, with test tube fertilization she can get pregnant... I am sure Dia you are aware of this...you can also Google it for detail information...
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