Birth control

In your guys' opinions, which type(s) of birth control pills did you like the best? I have irregular periods and need to talk to my mom about getting some pills as I don't want the shot or a ring. Also, how does it work with sex and being a contraceptive? I know you have to wait about a month for it to fully start working in your body and take it at the same time, but is there anything else? I'm 17 and my boyfriend and I have just recently started having sex with condoms. I know the pill is not 100% effective, but I want to take more precautions.