T.B.
I diDn't read the past posts so here goes. There is no need to give him formula. If you are still bf he is getting all he needs in the way of that. Both my girls were exclusivly bf and I started with a sippy cup at 6 months with some water. If they were a liitle constipated i would sometimes put in a little prune or apple juice with the water. They both started on milk at about 11 months. They did not have juice til about 18 months. My oldest only like oj, which is the best to me. Don't give him formula, you are opening up a can of worm. If he is eating solids good and drinking water with his meals he is doing great. I found that my daughter did good with a regular cup at meals, so I could help and avoid spills. My other one did better with a straw. So keep trying. I think you are safe if you want to start with a little milk at meals but keep up with the water. Use that in his cup. Wean him when you both are ready. You don't have to stop at one year.