If your periods are too much all over the place, sometimes it’s just recommended to just take 2 every 1th-14th of every month. That way it’s easy to remember. Your periods might sync with this schedule or they might not. It doesn’t really matter for endometrial protection, as long as you take the correct amount every month.
So, you can experiment with what works best for you, 1 daily, 1 for 25 days and then a 3 day break, 2 for 14 days a month or 2 for 12-14 days out of 28 days (if you have a clear cycle).