Breeding with my old Teacher

Long story short. I'm David 26 average a carpenter. Back when I was in high school I had a crush on my english teacher Miss Russell. Who was 26 at the time, I didn't have courage to try anything with her at the time. After I left high school I went into carpentry and I got really good and was able to buy my small house at the young age of 22. It's no mansion, but it has 3 bedrooms 2 baths and a large yard with a separate garage with a room on top with a shower and toilet. That was 4 years ago, 9 months ago the house beside was sold. For a couple of weeks it was empty, nobody came and than a moving truck came and someone moved in. I didn't know who at first, but came the weekend and I saw a woman mid thirties moving about the backyard. I didn't see her face and I kept building a deck on the back of my house. That afternoon as I finished up the stairs for the deck. she came to the fence and said "I'm Rachel your new neighbor". I was shocked at first and than said "I David nice to meet you". At first she didn't remember me, but while sitting under a shady tree talking and having a drink. She asked " Didn't I teach you English a few years back". I replied " Yes ". "Well it's small world and what do you do now" she asked. I replied "I'm a carpenter and work for a large housing firm and do up my house". "I'm just got the as english teacher at the local high school, my ex husband is the principle at the last. I didn't want him around me". " Any children" I asked. "No" was the reply. A little later she went back home, on the Sunday morning she asked "If I could look at a few things around her house, that needed doing and other changes that she wanted to make'. So I went over and told her what could none and the possible cost of the work. She made some sandwiches and we talked about the work she wanted done. She asked me if I could do the work, I said "I could, but as I worked Monday to Fridays and some weekends, It wouldn't be done quickly". "That's okay, I'm not in a hurry" she replied. The main job she wanted done, was her master bedroom and she wanted a ensuite put in. There was place to extend the house to square up the house an ensuite would perfect there. The following weekend I started and framed up the extention on the Saturday and finished it on the Sunday. During the week she had plumbers install the bath, shower, toilet and vanity. The next weekend on the Saturday I helped her tile the bathroom and fixed a door that sticking on anoter bedroom. After we had a drink and then later went out for dinner and a movie. After the movie we went a drive to the local lookout and then started to make out. She still looked gorgeous at 36 and we ended up in bed together and on regular basis then after. I would stay most nights with her or her with me. We decided to try for a baby and 3 months ago we found that we had suceeded. We marry after baby comes, she wants to have 3 or 4 children. Because our family histories has alot of twins in them.