Checking string, what's that???

Melissa

So I've been feeling poked/sharp pain inside vagina for a few days. I went tk check my string which I noticed seem longer now as it wraps around my cervix.. but today u felt something hard and rounded tip in my cervix... is that my IUD?? Woukd that mean it's out of place??? I'm on a mirena and have had it for onky 3.5 weeks and 2.5 if then I've been bleeding

Help?