raw sex advice

okay so i’m 17 years old and i want to get on birth control and me and my boyfriend have had sex 4 times with a condom each time, but we really want to try the unprotected so bad because i just want to be skin to skin lmao. but i’m on these acne pills called doxycycline, and if i want to get on birth control can i use both, or is that too many hormones? and if there is a way, it is possible for me to get on birth control with my parents knowing? they don’t know that i have sex and i don’t want them to know, but i also don’t want to be pregnant so that’s why i want to get on the pill. btw me and my bf lost our virginity to each other and we’re both clean! and if i do have unprotected sex without a condom and birth control can i just take a plan b literally after and i’ll be safe?