Hi there,
There are a few possibilities. First of all, this is such age for a toddler that everything seems more exciting than nursing which requires him to sit or lay down. A lot of toddlers were weaned because the novelty of walking and being able to explore took all of their attention, they just forget to nurse. It can be only a phase and it truly depends very much on you and your commitment to breastfeeding. Usually, if a mom keeps offering and doesn't take it personally, a child will eventually go back to frequent nursing and may even surprize you with a renewed interest in it. If you don't care too much about how long you want to continue, this is a good time to encourage weaning.
I experienced several waves of such behaviour since my dd turned one. There were times she was only interested in nursing once or twice per day, which was unusual compared to her regular nursing needs. I always wanted for her to keep on nursing, as I knew that very few toddlers self wean before they are two or even two and half. Now, I know these are just normal phases in natural weaning, a child has a period in which his need for nursing decreases that will be followed by a period of increased need for nursing. All in total, it gradually decreases over the time anyway, what I considered a typical frequency of nursings at one or one and a half is not typical for my two and something year old dd.
Trust your instinct as a mom, remember, your child won't take your breast if he doesn't want but you can keep offering and see what happens over a period of time. I am personally very commited to extended nursing so I would encourage you to keep trying.
Good luck!
Monika
