Nuva ring birthcontroll has anyone had any bad experences....?

how do you like it... Is it uncomfortble during sex has it ever fallen out, made anyone sik, given them an infection.... I jus gave birth about 4 weeks ago nd I jus chose nuva ring as my borthcontrol methoid... I still have to wait 2 weeks for intrcorse nd I'm worried it will feel weird or fall out wat should I expect