Sizing

msjanet02

Growing my CD stash in prep for my LO's arrival next month. I'm looking at several newborn/size 0 sizes and am wondering, on average, how many months those would last. Most state up until about 15 lbs.

I ask because our friend is gifting us a month of CD service. Will my LO most likely still fit in NB sizes for a few more months, or should I just concentrate on my size 1 and OS stash?

TIA for your suggestions!