Lubricant?

Cristina • Aspiring makeup artist who currently is in love, has had sexual and emotional relationship experience. :)
So when I decide to have sex for the first time where can I get some lubricant?
Sorry, i have a couple of questions. Lol
What type of condom is best with which lubricant?
Also, where can I get THAT kind for free at a clinic?
Do I need any other type of birth control (like pills or shots) even though the dude is wearing a condom? Or is the condom enough?
Sorry, i'm just curious because i'm still a virgin. I've "made out" before with several of my past lovers but i'm single now. :) thanks!