Neoplanon Birth Control?

Jessica
I got the Neoplanon insert in February and I feel like I might be having issues. That February, March, & April I still got my period like normal like I expected but 6 days after my period ended in April I started my period again (full 6 days) which went on till the beginning of May. Today I started my period again but it was dark brown with lots of clots. I've also had some slight pain where they inserted the rod. Has anyone else experienced this?