When feeding DD sometimes she pulls off, but I know from experience that it doesn't always mean she is done so I try and put her back on again but when I do she shakes her head from side to side though still opens her mouth to latch on. She also sometimes shakes her head and/or pulls away with my nipple in her mouth (ouch!). I can't decipher whether these mean she is done, as often I'll put her down and 20 mins later she will want more! She is 6 weeks btw. Any experience with these cues anyone?