Things to consider before going on the pill?

Recently I started being sexually active and my only form of protection has been condoms. I had a scare last week (long story short, we used a condom but it came off as I got off of the guy) and I took Plan B. I just want to have extra protection in case something like this happens again or if the condom rips. I’ve been looking into birth control and just wanted to know what to be aware of and also what you ladies have experienced when you started taking the pill (since everyone’s experience is different).

Thanks a lot to all those who answer!