spotting on birth control?

Javi

So I started yaz birth control and my first pack of it is almost done. For the past maybe 2 weeks I’ve been having light spotting consistently (as if I have an extremely light period) is this normal??? My period is supposed to start in four days this will be my first time having one since starting birth control. I’ve had cramps as of today so I’m assuming my period will be regular and on schedule