Is headaches normal when stopping the pill?

Bárbara • I'm 28, and I have a beautiful baby girl born on May 30th, 2017 ^^ I also have a dog named Oliver and I love him lots!

I've been on the combined pill for seven months and I finished my last pill a week ago, I was supposed to start on saturday with a new pack but I didn't cause I don't want to take it anymore. And now I've been having headaches everyday since saturday.

Is this normal? Does it have to do with the pill? Thanks in advance!