bashed for my... contraception?!

So I woke up this morning and had a look at my notifications. I had participated in a poll of contraceptions and commented 'depo shot'. Due to this being my current form of birth control. I never thought I would wake up to comments bashing myself for using this contraception?! Basically saying about how I'm going to be infertile or will have to have treatments, why didn't I think about when I want kids, I've ruined my body, my bone density is gonna be ruined. Firstly it is no ones business as to why and which birth control I am on. What if I never wanted children? I do but that's besides the point. Secondly, where do you get off telling me all these things when they might not even be true. My sister concieved after 5 months off the depo shot and is back on it. It's very upsetting to read personal attacks at myself just for choosing a readily available contraception. I can't believe that on this app we've taken to bashing others for their choice of birth control. It actually upset me this morning reading all the things some members wrote and I will be doing my own (more in depth) research today. It's just so frustrating! Sorry rant over...