Well i only have an answer (in my opinion) for 1 cuz of my crazy mom. But if you and your mom are close then she would most likely understand if you felt you were ready for sex.she might even be happy that you want to go on the pill and not take the chances of something goign wrong with the condom. You could even tell her it would help you with your period and cramps , one of my friends has to take birth control for that reason.