Can't figure out how to log an early period

bailey

So my period came 9 days early, no biggie, I'm not concerned, but I can't figure out how to log my period since it has come so early and <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> is obviously not giving me the "have you started your period?" Notification. I know I can edit/add periods in my calendar but i have to add an end date, which is useless since I dont know when this period will end.

TLDR; how do i log an early period that I am still having