SHE DOES WANT TO GET PREGNANT
Sir Nicholas, your argument appears at first glance to be valid, but I believe you have misinterpreted. I shall address each of your points in turn.
1) She leads a lonely life
She lives all by herself and wants some companionship. Clearly she doesn't want the company of men, except for the bare minimum of what is necessary to produce said child. A child would be her constant companion, thus making her life less lonely.
2) All that she wants is another baby
I think clearly she had a baby at some point, but no longer. There are three possibilities:
i) There was some sort of accident/sickness and her baby died.
ii) Her baby has grown up and left home and now she longs for another one.
iii) Her ex took off with their baby.
I think iii) is the most likely since it also explains why she doesn't want to be involved with men again. (She's gone tomorrow)
Baby time fellas.
Baby time.
