After another breakup

I'm Carl 23 going to the local university and living my mother Joyce 42 divorced. Last year Joyce broke up with then boyfriend Brian and as usual started drinking. It usually take a couple weeks before she settles down after a breakup. My father Donald left her 6 years ago and it took most of her self esteem at that time. Ever since she has a relationship and it fails and she starts drinking again. I'm no ladies man and only got lucky once before, but that another story. Anyway I'm no handsome hulk and more a skinny nerd, Joyce isn't a centerfold which is about a 10, but allowing for age would rate about 8. Nice body, great rack and good looking as well, I came home and she had been drinking and wasn't with it as they say. She wasn't dressed still in her PJ's almost see thru. I was aroused by my first sight of her on getting home, which was a new experience in our relationship. She leaned against me and I held her up, feeling her up as I did. With no reaction to my feeling her up, I went a little further. After each new advance in my actions and no reaction from her, I would go further each time. I got her top off and she still didn't react at all. With only her panties still on I decided to risk it and put a hand inside her panties and started fingering her. With her seemingly enjoying my actions. I took her to her bed and fucked her, she actively encouraged me while I fucked her. So I stayed the whole night with her, after fucking her again in the morning I went to the university. After finishing my studies I returned home and found not only sober, but horny as well. I thought she must want fucking again and started to play with her and she let me fuck her and still does today. She has decided to forget her failures and just please me, but also wanting me to find a wife. As she wants grandchildren, we haven't used any methods of protection during our sexual relationship and she hasn't yet pregnant. She may still pregnant but as of this time she isn't.