I also gained weight & developed some serious mood swings.
Ah yes! How quickly you can forget!
I gained about 6kg in about 3 months without doing anything different, and COULDN'T get it off even going to the gm about 4 times a week and cutting my diet RIGHT back. As soon as I took it out, I lost the 6kg in about 2 weeks, again, doing nothing.

And the mood swings!! I was constantly feeling premenstrual and just 'off'.

I have a girlfriend at the moment contemplating having her tubes tied. Her husband doesn't want to get a vasectomy and she just doesn't want more children. Traditional hormone contraceptives play havoc with her skin, and she sees this as the solution.

Whatever you decide to do Leigh, I'm sure that you can get the support that you need either here, or referred through your GP. Good luck.