Stay with prefolds and covers. I spent a fortune on NB stash only to find out DS was HUGE and was only in the smalls (skip NB all together) for less than 8weeks. Once the baby is born, you can build up a nice stash. I also wouldn't get more than 1 of a brand of diaper until you are sure it works with that baby. Again what worked with one of my DC hasn't for another.
My ideal NB stash
24-36 prefolds
12 fitteds
3 PUL covers
3 Fleece covers
2-3 snappies.
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-Katrina
Makayla (12), Megan (10), Stephen (7), Shaleigh (4) Patterson (1) and two guardian angel (8w5d and 7w5d)
We are currently ttc. I plan on using fitteds (nanipoos, tush, bizzybeehive) and converting my infant prefolds to prefitteds (funny farm creations does this).
I wanted to add that although using prefolds and covers is a great option to use since the grow so fast and you change them so often, I just personally like using diapers with elastic around the legs to hold in the runny bf poop.
I have prefolds with covers, baby beehind magicalls, kissaluvs, and newborn cuddlebuns for the next bub, I have no idea whether they will work lol, my DD was in in terry flats for the first few months lol.
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Just about the time you think you can't handle hearing one more "when is that baby going to pop?", your baby will decide to make it's appearance. We predict your baby will be born 3-7 days before its due date. Your baby will most likely be born in the morning. Justmommies predicts that your baby will weigh approximately 6.8 pounds and that your labor will be about 9 hours long.