when we introduced the bottle at 4 mo we just did it for one feed (the same feed) every day - an evening feed. i'd give the bottle as Avery just wouldn't take it at all from DH until she was really used to it. at first she would just take a few oz from it, or none at all and then i'd top her up with the breast so she wouldn't go hungry. i was giving only expressed breast milk. eventually she took more and more from the bottle until she was taking a full feed from the bottle. then she got really good at it and would go back and forth bottle to breast no problem.

then a few months ago we had major NW problems and i thought it might be hunger related and supply related so i pumped for 2 days and did only bottle to see how much she was getting...well that really did my supply in and Avery decided she liked the bottle better and weaned herself in about a week.

so now she's 8 mo and completely bottle fed now for about a month, a bit earlier than intended!!

so just a word of caution, if you give exclusively the bottle for a few days to get him on the bottle and pump just watch your supply because you might run into trouble.
good luck with whatever you choose to do
