If you take the pill, you don't have an ovulation.
You can get pregnant in the first and last week of the strip when you forget a pill, unless you take it within 12 hours after the original time you normally take the pill. If you are not shure, take a pregnancy test first. If pregnant contact your GMP (huisarts)

Question: If I don't have ovulation, how can I be pregnant in the first or last week of the strip when I have been taking it all along from the last day of my last menstruation cycle.

If you forget a pill, ovulation can start because of the lack of hormons. But normally, if the pill is used you don't have ovulation. This is how the pill works

okay. so is there a possibility that the brown discharge that I had twice (once when I had only 1 pill left out on 21-days pill strip) and two days later( i am finished with the pill strip) is considered as a period? The pregnancy test is negative. I am not able to know why I don't have a period. Also, should I resume my new pill-pack?

During pill use it can sometimes happen that a period does not occur. That in itself should not be a problem. If it happens more often, it is good to consult the GMP/huisarts.
Just start in time with the new pill-pack