I believe that @Susanna posed this question in a playful sense. Right now, the current flow of conversation is to whether it is morally reprehensible to kill mosquitoes. Red wasps too. I guess any little thing that flies and intends to sting you.
I was touched by your post. I will certainly say a prayer for Megan.
I can understand your asking to marry her so you would be better able to take care of her. I went through something similar many years ago.
I met a woman who was not in the best of health with many various medical issues...
I won't be having any future children. I only have my one daughter and did the best with my understanding and the resources provided by God. She is 44 years old now with 5 kids of her own.