This is really going to sound "nasty" BUT, if you are too busy to keep an eye on her 24/7 if she is loose in the house then be prepared to have problems with housetraining.
What was she used to at her breeders? If she is 3 months old, was she started with the breeder? Did they use newspapers, litter box, outdoors? Most puppies have many regressions in house training. It takes constant supervision… and time... to housetrain.. and it is NOT going to happen in 5 days. If you take her out as soon as she wakes up, I would be very surprised if she doesn't go.. that is the time to really praise and give her treats... When she realizes that treats and praise go hand in hand with potty outside, she will get the message.
But again, if you are going to leave her loose in the house and not watch her... then be prepared for the results...