My son wouldn't take formula either.  I just kept breast feeding.  Here in Canada it is 12 months old before you should introduce milk.  There bodies cant digest it yet.  My son didn't like bottles either.  I started him on sippy cups,  but I also stopped breast feeding at a much later age.  so it is up to you what you want to do.  I would start milk until they are 12 months. 

Hi there, I would check with your doctor about what age your son should start cows milk. Here in Alberta you can start to introduce cows milk at 9 months of age( and that is homo milk) 2% can't be introduced until your son is 2 years old. Now it could be different anywhere else, depending where you live.

Good luck with everything

Not sure where you are located but I always had good luck with the Enfamil brands of Formula.  There is one that is pretty close to breast milk called Enfamil A+.  As for the cows milk, my doctor recommended a year and then only 4%.  I did give her some before a year but found that it bothered her tummy a little, so I switched back to the Enfamil. 

Here is a link to the website if you are interested.

http://www.enfamil.com/