Wrong date

Si
So yesterday morning <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> asked me if I'd gotten my period, and I said no because I hadn't gotten it yet. Then I got it later in the day and told the app that I had had light bleeding. 
Then this morning <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> asked me if I get my period, and I said yes, and then it game me the option to put a date in. Except it wouldn't let me pick yesterday, it said I could only pick the current day...then why give me the option to choose a day??? And now it thinks I got my period today, when I really got it yesterday, so now this cycle is probably gonna be all messed up unless I figure out how to change it