@Wileycat has good advice here. We binned off the pads early because Molly a) wasn’t using them very effectively and b) enjoyed eating them. Outside training is good if you can do it.
We also got Molly a set of bells on a ribbon which we hung from the back door. When she started to get the toilet training and going outside we held her paw and knocked the bells. Now, when she wants to go outside, she nuzzles the bells and we come and let her out.