Tips on potty training

Cass • •Mrs. 💍 •27💕• 2/20/2011👦🏻, 12/14/17👧🏼, 1/6/20 👶🏼

My daughter is 1.5 years old, she’s showing signs she’s ready to use the potty. She will say pee pee and grab her diaper as soon as she pees. She pulls her diaper off. Anyways we got a potty chair for her and with in 5 mins of sitting on it she went pee. Any tips on how to keep her on track. Do I use pull ups or underwear for her? If underwear, where would I be able to get size 18 month underwear?