At What Age Did You Potty Training First Born

Lauren

My son is 2.5 years and I'm due in 9 weeks with his little brother. I've got him in his big boy bedroom and now im hoping to potty train. I'm trying to get him use to sitting on the potty and climbing on it on his own. I feel like it's going to take some time...when did you potty train your first born? How long did it take?