Puppy Backsliding on Potty Training?

I have a 3.5 month old puppy. She was doing very well with peeing on puppy pads, but would not poop on them ever. She did very well going potty outside. I taught her the phrase "go potty". Then my husband and I went on vacation for 5 days while my brother puppy sat. Now she does not want to go on the pad, even when I bring her to it and tell her to "go potty" when she wakes from a long nap.

She has started to pee on our bed, which she also sleeps on, and her own bed, and the couch, and also the doorway to our bedroom. At first I thought it was because my husband had previously bought lavender scented pads and lavender scented floor cleaner, but we have changed both. We are very frustrated, and don't know what to change to get her re trained