Have to switch to full formula feeding ASAP, and DD (14 weeks) will take a bottle of expressed breast milk and some formula, but just sort of plays with the teat in her mouth. She isn’t really drinking (using tommee Tippee with teat size 1) and I’m wondering what I can do to speed the process up and get her to have a full bottle? I’ve been trying to get her to drink one bottle a day and give up for 24 hours if she doesn’t have it. Am I doing it wrong?