Our lo was the same way - well, he actually took a bottle from 6-8 weeks and then suddenly wouldn't go near one! We tried a whole bunch of nipples and finally, a BW friend from the U.S. (we're in Canada) mailed me a couple of nuk nipples that are the yellow, soft rubber variety. Apparently, they gave them away for free to new moms at her hospital and they fit universally on many small mouth types of bottles. I used them on our Dr. Brown's bottles and they worked well. This was the kind of nipple he would first accept and after a few weeks of using this one, I tried the Dr. Brown's ones and he took them, no problem. I'll also say again, as I did in a previous post, that we got him to take a bottle by offering ebm during the df. He took the bottle with the nuk nipple in that dozy df state and then a few weeks later we tried a bottle during the day and he was suddenly fine with it. This process is what worked with our first son, as well. GL!