I would take it slow. If you just bought her a potty this week, I would give her a week or 2 to get used to it. Take her potty w/ you (just to watch you go), every time you go for a couple of weeks. Explain what you're doing, let her sit on her potty w/ her clothes on. Let her get used to it (a few days isn't long enough to get used to it). Buy her a book on using the potty. Does she show several of the readiness signs (get a book to see what they are)? If not, I say she's not ready, if so, then she is. Does she verbalize when she is going ("pee pee" or something like that? If not, touching the diaper consistently is a pretty good sign). If she shows other readiness signs besides this, then when you see her touch her diaper take her to the potty, get all excited, take off her diaper & tell her it's time to go on the potty. After my son went on the potty I sang a potty song that I made up, then we'd both clap a lot. Take it slow. Once she starts going, take her on a schedule (before bed & before naps, then after a week or two add every morning & after naps, then after a week or two add mid-morning & mid-afternoon). Being a SAHM will help you a lot b/c you can be consistent. My main suggestion is make sure she's ready by looking up the readiness signs. My 2nd suggestion is take it slow. My 3rd suggestion is you don't NEED to use pull-ups.
My son is 2 yrs. and 2 mo. old & is 95% potty trained. I started at 19mo, so it's been a long & slow process (I took it very slow...partly b/c of my fear of putting him in underwear too soon). I did not use pull-ups at all (I hear they don't help at all). After doing the slow approach to going potty for some time, I started putting him in underwear at home (last month), and in a diaper for sleeping & leaving the house. Once he stayed dry at home for 2 weeks in underwear, I started putting him in underwear when we left the house (just this week). I tracked all this on a calendar. He's been dry at night for over 2 weeks straight, so in a couple of days I'm going to keep him in underwear for sleeping. I'm sure my 7 mo. approach was too slow, but I started training him very early so I didn't want to mess it up. Good luck!