PARAGARD IUD only increases periods for women for the first 1-3 months, after that they return to normal.
I DID use a Mirena for 18 months, but switched to paragard because I had bleeding for ALL 18 months.
Mirena can cause some women to constantly bleed, it did to me.
I HAD a weight problem, I lost 90 pounds about 11 years ago.
MIRENA did not make me gain weight, or cause depression. BUT, I exercise 2 hours everyday, and never cheat on my diet.