I have a question

My husband works out of town well he came home yesterday and this morning we got a little carried away and went a little to far so yes we had sex it is one day after my ovulation day so I’m still at a risk of getting pregnant the only form of birth control we have been using is the pull out method which obviously does not always work that’s how I got my son I really don’t want anymore kids and I was wondering if the plan B pill is something I should get I have taken it twice before in the past and I do have an appointment with my doctor to talk about birth control even though I don’t like most forms of it but I guess if I do t want anymore kids I have to do what I have to do I know they say it not to be used as both control a lot but right now this is all I got