Is it permissible for a Christian married woman, who is 15 weeks pregnant and has just converted to Islam, to abort her fetus in order to marry a Muslim man?

It is not permissible to abort the fetus at any stage of its life, and the prohibition is confirmed after the ensoulment.

What was mentioned about her wanting to marry a Muslim does not permit her to do so; she must wait until she gives birth. Her child is ruled to be Muslim, following her, and his unbelieving father has no right to his custody.

As soon as she embraced Islam, her marriage contract was annulled. If her husband embraces Islam during her iddah (waiting period), she returns to him. Otherwise, she is permitted to marry someone else after the iddah ends with childbirth.