10 month old wet nappies amount? How heavy?

How many wet nappies does your 10 month old have daily? Are they really heavy/wet? I'm just a bit worried about my little ones wet nappy amount really and how wet they are. She does wet nappies and she's feeding and drinks some water with her meals 3 times a day but her nappies aren't overly wet. She hardly ever wets the whole blue line on the nappy and sometimes I am just changing her as its been 4 or 5 hours and I don't want to leave her in a nappy too long but I could get away with her wearing it for longer as its maybe only half wet.. or not even that. She doesn't seem dehydrated. I check her fontanelle regularly but it seems OK.. I EBF so it's hard for her to judge how long much she gets. So I'm getting paranoid now I think.. she eats 3 meals really well but she doesn't feed herself water..only when I give it to her in an open cup so i dont feel like I can drop a feed even tho she seems to be naturally reducing her day feeds and she will turn her head once she is done.. Can anyone offer any reassurance? My first baby used to drink so much water too so I never had this issue- her nappies always seemed so heavy.