My DD is 6 and a half weeks and she's still only taking between 2.5 and 4 ounces per feed, and once has taken 4.5 ounces. How much is OK? She has about 7 or 8 feeds a day, I want her to have more at each feed and feed less often, but not sure how to go about this? Also, we use avent bottles. She finds size 1 teats too slow, but size 2 are waaay too fast for her (even though they say from 1 month). Do any other teats fit avent and are their size 1's faster or size 2's slower? And one last thing, this last week her poss have been explosive! Her nappy leaks and her clothes get covered, her skin gets stained etc. Its only been happening this last week (have experimented with different nappies, next size up etc and no help). Should I change formula? She's currently on cow and gate. Thanks! sorry for spelling mistake in title!