Period changes with Zoloft

Anyone taking Zoloft and experienced changes in their period? I've been on Zoloft for two months now, and it seems to be changing something in my body. I normally have a light to moderate flow about every 5 weeks. I'm currently on my second period since starting the meds (had period right after starting them), and there is barely any blood, which is unusual, but I have the usual physical symptoms, like bloating, cramps, headache, fatigue. I'm a seeing a gynecologist next week and will be discussing it.