New to Birth Control

I just started taking the pill (POPs) today, while on the first day of my cycle, which is typically recommended. i think my cycle is gone now 😂😭. should i just keep using the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> or give it up completely now. help pls 🙂🙂🙂