New pill problems

Okay so I've started a new pill called estelle! I started on my last period and everything has been okay so far compared to my last pill which made me feel extremely depressed and moody! 
But I have just started taking the sugar pills on a new pack and I have taken my third day yet I still do not have my period? 
I have had sex within the past month but other methods of contraception was used?! (Condoms) 
What's going on😅😅😅😅