was advised by my doctor to wait 1 month of pill taking on Levlen ED before i am protected from pregnancy. even though the leaflet says 14 days?

now i am confused about the term '1month' does this mean when i finish my 1st packet of active pills im protected? or must i take 30 active pills to be protected? after i finish my first packet i would have only taken a total of 21 active pills, does this count as a month?

also, because i stopped taking antibiotics 4 days before starting the pill, i was told it would be a week before the pills begin working. so minus the week out of my packet where the pills i took wouldn't have been 'as effective' that would be 19 active pills since my first few pills were placebos.

i have finished all the active beige pills in my first pack and am wondering if its safe to have unprotected sex

so confused!