I have started to express milk and try bottle feeding DD with it. How far do you put the bottle into the mouth or should I let DD work it out for herself? She hasn't worked out how to suck it yet and I worry it's in too far because it sometimes sounds like she's gagging. Help - can anyone give me tips on how I should bottle feed? She doesn't seem to hate it, but she hasn't got the hang of the sucking technique yet.