That was well said.
Just to let you know, not all birth control pills have inactive/placebo pills. With some brands of pills, you have a pill-free week instead.
For example, my pills come in packs of 21 (3 weeks), and all of them are active pills. At the end of taking pills for 21 days, I have a pill-free week, then start the next pack.
Since you are just starting out taking the pill for the first time, it would probably be easiest to get a brand that has placebo pills, so you are taking a pill every single day and can stay in the habit easier.
Just to reiterate, you only need to use backup contraceptive (i.e. condoms) for the first 7 days of your first pack. After that you are protected every day of every month after that. You don't have to use a backup method each time you start a new pack - just for the first pack.
Also, you are fully protected during the pill-free (or placebo/reminder pill) week.
If you have any other specific questions, we'd be happy to answer.