Depressed on Placebos

I’ve been on the same pill for around a year. It’s LoLoestrin (Idfk if that’s spelled right)

In the beginning, it made me sort of depressed. I deal with depression in general, but i started noticing a pattern of it being pretty bad when I was on my placebo.

After I had been taking it for 3 months it stopped and I felt fine for a the next 3 months.

Starting 6 months ago, not every month, but some months when I start my placebos, I can get super depressed.

Idk if this is something normal or reason to consider switching brands. I feel like I put it off because it isn’t as frequent and I get worried I’ll start a different pill and it will be worse.