Maybe try keeping her outside a little longer. And try to watch for a routine in terms of when she poops. My Hercules is now 6 months and I know he poops first thing in the morning and at 5:00. So I know to be on the look-out then. I think your baby is still really young too, and remember that they don't have bladder control yet. Hercules would constantly have really small accidents, but they aren't as bad now. It takes a while, so hang in there.