NuvaRing and deficient

I have been on NuvaRing for 4 months. I was previously on DepoProvera for 10 years, but due to bone loss, osteopenia, had to get off it. I had no side effects with Depo, no periods, no PMS, no problems.
I gained 12 pounds the first 2 months on NR. My weight continues to climb, even though I exercise and eat well. My breasts are swollen and sore constantly. I have excessive discharge, itchiness, and burning. I have also noticed I have gas more often.
I do not take the ring out for a week for a period, I just insert a new ring after 3 weeks and have experienced no bleeding. I have NOT experienced any of the other symptoms, such as depression, anxiety, mood swings, headaches, which is surprising since I have been estrogen-deficient for 10years and am suddenly on it.
Overall, my symptoms seem minimal compared to others' experiences, so maybe everyone is different. But it does scare me that these symptoms are possible in the future.

PROS:
easy to use, convenient
only have to take it once/3 weeks
big boobs!
no period

CONS:
weight gain
breast soreness
yeast infections, itchiness
excessive discharge
gas
cost $35 every 3 weeks (my Depo was free)