Taytulla Birth Control

Ta

Can someone explain what a 24 day pack is? I’ve taken tri-sprintec and Lo Loestrin Fe before. I had a baby 4 months ago and my OB gave me 3 free pack of Taytulla. I started it Last Friday on the first day of my period and I’ve had nausea everyday and I feel more tired and dizzy than normal and I have stomach cramps and I feel like I need to vomit sometimes. Is this normal?? Should I stop it or keep going?? What side effects did you guys have??