Got my teacher pregnant

I left school after high school didn't do well enough to get into any college. Trained as a mechanic, several years later I now 23 came across my history teacher then 35. She was recently divorced no children and drunk, I'd liked her a school and thought I should look after her. Make sure she got home okay I took her to her rooming house she was living in. But the police were raiding it, so I drove straight passed. No other option but to take her to my small cottage. I'd bought it and was doing it up, had no girlfriend at the time and done okay dating, I think. But hadn't found the right woman as yet, anyway she was drunk and turned out horny as well. So, we'd sex I'd no condoms, she said she was protected and so we fucked and fucked again in the morning. She liked my home said how much better it was than her rental, having just fucked her I thought she might enjoy living with me instead of the rented room. So, I offered her my spare room, she accepted, and we went got her belongings and she was now living with me. Fucking again that night and before we went to work in the morning. Sex was regular, then she got a call from her doctor. The protection she was on was being recalled due to faulty batches, what are the chances she had a faulty batch. In her case 100%, she got pregnant. I was shocked and didn't know what to do, she was calm and after thinking it over decided she would have the child. Not expecting me to marry her or provide child support, maybe just a place to live. One thing you can't get more pregnant once you're pregnant she said so we could keep fucking. I came around to her thinking, she had our son, and I bought a puppy. I still can date but haven't bothered, why bother I get regular sex and don't have to go out to get it. I may in the future start dating again, but I'm quite happy as it is at the moment. She says she doesn't want to remarry and isn't not dating either, my mother cares for her grandson while we are at work. Both my parents know how it happened and support our decisions. Drops off our son on the way to her teaching job and picked him up on the way home. My mother has suggested we've a sibling, but I'm happy with my lover making the decision. She hasn't said yes or no about it yet, but I know she is thinking about it.