How does the pill work?

S

Hey ladiessss and gents :)

I am officially starting birth control (finally). I have no idea how it works, my parents taught me nothing about it for the 20 years I’ve been alive haha. So I have a couple questions.

Because my parents don’t support me being on birth control, I actually pay for it myself through an app call pillclub and I am going to be using isibloom birth control. I know I have to take it once a day, at the same time (is that correct?). What happens if you don’t take it at the same one? And what happens if you miss a day by accident? Do you take two the next at the normal time to catch up? Also, how long does the birth control take to be effective in terms of preventing pregnancy? If I start taking it next week, and get my period a week later, will it be effective even during my period?

Am I allowed to drink with my birth control? I’m not on any other medication. I take the occasional Advil when I’m on my period but that’s about I. Also I’m getting my blood taken and tests done because my doctor thinks I have some vitamin deficiencies and stuff, will that show up in the blood results?

Are there any other things I should know before going into this?