Amnio at 16 Weeks With Fraternal Twins

Hi all I 25 and 16 weeks 4 days pregnant with fraternal twins (our first baby, well babies!).

I wanted to ask if there are any mothers that have had an amnio on their twins and all has turned out ok? Today is day number 3 post amnio and only had slight discomfort/cramps and leaking a little. It's hard though because I leaked before the amnio so I'm unsure. I just want my girls to be ok. Any insight would be great.

Thank You