I always thought an IUD was the way to go. Loved it . My problem, I wasn't very monogamous at the time, at all. Otherwise, it's the way to go. No extra hormones to mess you up.
I only got stupid and did synthetic hormones for HRT---WHAT A DISASTER. Loss of hair and sex drive.

Don't blame WOE, it is the extra estroen your burned fat is releasing. It's a bad side effect for a better WOE and WOL.