I've ebf DS up until now - he's 6 months old.
I want to try and introduce a bottle of formula at night, with a view to gradually switching completely.
He's had expressed bm a good few times and has always been happy with it - I've used a tommee tippee bottle with first size teat. He's also recently had some ready made Aptimil from the same bottle with no probs.
I've now bought some larger Avent bottles with 2nd size teats in preparation for him having more formula.
I have bought a tub of cow and gate as it's cheaper than Aptimil. (Rightly or wrongly)
The 1st night DP fed him with the new formula/bottle arrangement. He was fine but only had 2.5oz. Not as much as I hoped but he slept reasonably well.
2nd night I tried to bottle feed him. He cried through most of it, drank 2.5oz again but kept screaming so I caved and gave him the breast. He drank quite a bit then went down but didn't sleep quite as well as the night before.
Tonight has been carnage. DP has been with him as I thought it would be easier. He's cried loads and won't go down. He's had more formula than previously though. He's still up there with him.
He's had no problems before now having a bottle so I can't understand why now?
Is it the bottle? As he's used to the tommee tippee? Is it the formula as he was fine with Aptimil? Or maybe he knows that I'm weaning him off the breast and that's the problem?
Does this just take practice? Will it get easier?
Help please 