I'd say it's too early to get her to go outside. I waited till Ahi had all of her shots (and still had to wait a couple of weeks after) and then once she smelled some other dogs pee on the grass she just went. So now I have my little one go on the pee pad and outside. No problems with either. My Ahi is little too she weighs 3lbs. 14oz.
Oh! And welcome to YT!