A.S.
I would educate your husband about extended nursing. It is totally normal and fine and in many cultures, the norm. Nursing is just as beneficial to your dd as it was when she was a baby. She is still getting antibodies to help keep her from getting sick. Even if she is only getting a little bit of milk, it is made specifically for her and gets more concentrated as they get older.
It really isn't his decision. Yes, it is his daughter but you and your daughter are the ones that make the decision, not your husband. If you want to continue, you will need some strong support from elsewhere unless you get him to understand. I am sure you will hear from alot of moms on here who nurse past 12 months....it is perfectly healthy and fine. It is just our society's hang up over making breasts this huge sexual thing that causes the problem. It is his problem.
Have your husband read up on it. You can be on birth control and be nursing. It is perfectly safe....just sometimes it can decrease your milk supply....but if you are only nursing once a day anyhow it shouldn't matter too much.
http://www.kellymom.com/bf/bfextended/ebf-benefits.html
http://naturalchild.com/guest/norma_jane_bumgarner.html
http://parenting.ivillage.com/tp/tpweaning/0,,3x5j,00.html
http://www.kellymom.com/newman/21bf_toddler.html
http://www.mothersover40.com/extendedbreastfeeding.html
I nursed my first son until he was 29 months...the last year or so was probably only at bed time. He decided when he was ready to stop and it ended so gracefully and simply and it was very satisfying to me to know that I didn't end it artificially because it was inconvenient to me. He told me when he was ready, and it was done. Easy peasy. I am now nursing my second child and I hope to do it the same way (although I may have to push a little more with this one....he is quite intense in his love of the "gilkies".
As your baby becomes more and more independent and busy, nursing really becomes even more of a joy. A time to recenter yourself, focus on what is important. It will not be so much longer that your child is going to want to stop and snuggle with you in this way. When they are toddlers...so mobile and busy......this is extremely special and rewarding for both you and the baby, even beyond the nutritional and immunological benefits. It also calms and centers them and lets them know that Mommy is still there for them when they need you. I don't know how many times I was so thankful that we didn't stop nursing when he was sick and wouldn't eat anything.....but he would ALWAYS nurse. AFter a busy day at daycare and a busy day for me at work we would come home and nurse and take a little rest/snuggle time and after that, all was right with the world for the evening.
It does not matter what other people say. I know it is hard to stand up to them but really, what business is it of theirs? It isn't weird......it isn't sexual....it's just one of your ways of nurturing your child. Just don't even talk about it, if at all possible...no one needs to know. If you end up having to for some reason, just don't make a big deal out of it and if they make some kind of rude comment you can either try to educate them (if you think they are the kind of person who has an open mind) or just tell them that the way you raise your child is your business and that you have looked into it and there is nothing wrong with it, it benefits both her and you and you saw no reason to discontinue it when she clearly still wanted it.
Good luck. I'm rooting for ya!