TMI moment on birth control and the affects it's doing to my body!

Ok am new to birth control and have never used them! But I have a couple of problem with my period so my doctor started me on birth control with only progesterone to regulate my periods. It's been 2 weeks since I took the first pill and now going on 3 weeks I started my period on 9/4-9/8 for the first time in my life I have had a short and light period and no big clots but cramps like crazy! Is this normal???? Also today I go to the bathroom to pee and when I wiped I had sum mucus looking discharge, it really looks like i have boogers coming out of my vagina! So lady's has this happen to u and is it normal?? I'm wondering if I should call my doctor so he can make sure everything is fine but I also don't want to be that patient that call him for every little thing that happens to my body!! Lol please help😕