Pregnancy on birth control

Hi ladies, i'm freaking out right now! So, I've been using Nuvaring for the past month and started my period Sunday. My doctor decided to switch me to Annovera so by the second day on my period, i was on my last off day with my ring. (Hopefully that makes sense!). I inserted it, but took it out when me and my boyfriend had sex the next night and somehow my dog managed to get it and chew it to pieces. (She's okay though!)

So, i've been taking the pill for the past few days until i get sent a new ring. My body is definitely trying to adjust, but i'm so nervous i may get pregnant. Is it likely?? I've done as much research as possible but can't find any answers.