this seems to have been recently introduced, started seeing this about a month ago. Also not sure what triggers it exactly unfortunately :/

especially in the first few months, it can take a bit for the hormone levels to settle in and your body to get used to them.

If you have the option, getting your blood levels checked every few months can be helpful in the beginning to see whether you might need a higher dose to get into the desired ranges, but I feel like in the end, you feeling comfortable with how the levels feel for you and the changes is the most important thing.