Tubal ligation

Tubal Ligation.
I'm in my mid 30s, have 2 kids and don't want anymore and thinking of getting a tubal ligation.
I hate the side effects of birth control. The weight gain and bloating is terrible. I gained 15kgs in 3 months from Deprovera and about 5kgs from the Pill.
Its hard enough trying to lose weight as you age without hormonal birth control hindering it.
I don't want anything with hormones because of this and read tubal ligation does not affect hormones therefore no weight gain.
Is this true? I would like to hear about your experiences and side effects before going any further. Thank you.