Birth Control... help!

ca

I'm new to birth control pills. I've been taking zenchent for 2 months now. last week I had the worst yeast infection of my life, for no apparent reason. I feel shitty when I'm on the pills. I have taken them a few hours late a few times. But I always take them. I just got over the yeast infection, and today I started spotting. But the pills shouldn't make my period start until Sunday. is this Okay? should I call my doctor?