Make Glow/Eve more irregular friendly!

My only issues with these apps are that they're not great to use when you have irregular periods. When you start up eve it asks you to type in how long your cycles are, but if you're irregular you don't know and so I can't use the app. Please add something like an "I don't know" option or so. It's the same thing with the pregnancy app. There's only the option of filling in when your last period was and if you're irregular then your weeks will be all wrong. It would be good if there was an option to type in when you ovulated as well in order to get the weeks correct. Not everyone have regular periods.