Last night we switched to our Best Bottom diapers with our one-week old as we had been using up the disposables we had been given. This morning we had our first ever poop blowout. i had been careful to make sure that the insert was tucked in behind the leg gusset. He did eat a ton throughout the night last night but I also changed him at every feeding. I'm wondering if his little thighs are too skinny for them as there is a lot of space between the top of his thigh and the leg hole. Any ideas?