late periods

I'm late by 20 days according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>. Haven't had sex but do masturbate. My breast are aching and swollen, headaches and coughs, and I recently just went from winter break to going back to school. I also have white discharge coming out. What should I do?!