What type of pacifiers are y'all using? We initially got ones just like the bottle nipples, kinda like what the hospital uses, but my LO has never been able to keep it in for more than 2-3 sucks.... should I find another one to try like the old school style ones? She likes to fall asleep sucking on it, which means we get to hold it in and she will often wake up when it falls out... 😑