ParaGard
"After my 4 th child I went with the para guard not fully decided on if/when we'd have more kids. 10 years gave me plenty of thinking time :)

My 4th just started kindergarten and I was thrilled to have a schedule with free time for once. 

The day before school started I found out I'm pregnant!!

I immediately went to the doctor to have it removed but it isn't an easy pull. They couldn't find the string. It shows on an ultrasound still attached but attached right at the pregnancy. Too risky to remove. 

I just had a follow up ultrasound to be sure the pregnancy is viable at 7 weeks and discovered TWINS!!

I know, sounds like a funny prank. It's true. I'm pregnant with twins and the IUD is still attached! Found outMy sis is preg too IUD in place!"