Just got my first Tula and I'm in love! However I want to know if DS looks ok or if I need to wait until he's a smidge bigger? I have a blanket under his bum to help him sit up a little, he's almost 13 lbs and I know tulas are recommended 15 lbs. I'm hoping the blanket will be enough as I don't want to buy the infant insert to use for maybe a month.