With her being so young I highly suggest crate training. Don't let her sleep with you right now. She's still a baby and when she has to go and can't jump down, she has no choice but to potty on your bed. They really can't hold their bladder for long at this age. Get a crate with a blanket, toys, and let her sleep in it. If she has to potty she will let you know. Take her out and put her on the pee pad. I know how tempting it is to want to snuggle with your baby, but this is the best way to avoid those accidents on your bed in my opinion! Good luck