Hi, I had gone through your query and understood your concerns.
To prevent
pregnancy, always take
Microgynon 30 as described below.
Microgynon 30 comes in strips of 21 or 28 pills, each marked with a day of the week.
For a 21 pill pack,
Take your pill at the same time every day.
Start by taking a pill marked with the correct day of the week.
Follow the direction of the arrows on the strip. Take one pill each day, until you have finished all 21 pills.
Swallow each pill whole, with water if necessary. Do not chew the pill.
Then have seven pill-free days.
The other seven of a 28 day pack are supplements mostly iron
folic acid, which are meant for supplementation and also make you easy to take next pack the day after 28. So, better is to go for 28 one.
Hope this guides you. Thank you