C.M.
I recommend forgoing the pullups all together. Are you using them in hopes that it will help with potty training? I do not think they do. Either use diapers or put her in big girl panties and suffer through a few days (or few weeks in some cases) of wet clothes. Get some Gerber plastic underwear covers so it helps to seal the pee in and not drip everywhere!
Just my 2 cents...