how likely is it to get pregnant on the copper coil?

Question

just wondering... I have missed this month's period (by 7 days) but I'm a little nervoud

Answer

I've gotten pregnant on it and currently hitting the 32 week mark lol my doctors all seemed amazed it happened, and said it's rare that it happens but it can happen. 
I find it funny when they ask what birth control I want after the baby is born and I'm like yeah one that won't get me pregnant again lol

Answer

I got pregnant on paragaurd which is the copper coil, so very likely.....

Answer

It's 99.9% effective. You're period is most likely just late due to stress, change in diet/exercise, or just hormone fluctuations.