Nuvaring

Okay so I took out my ring yesterday and I still haven't gotten my period nor do I feel like I'm about to get anything and I'm not familiar with this type of birth control but I've been really emotional like I'll cry on any video I watch and that's not normal for me. Sorry I get really anxious about these things because I have a 7 month old and I'm just paranoid. I've heard that you can miss a period on it but I've Never missed my period and very on time unless I was pregnant. Has this ever happened? Is this normal?