When I had mine taken out I bled heavily, which was what I had before I had the Mirena. Lasted a week, like a normal period. I fell pregnant 2 weeks after, but I lost the baby at 6 weeks. It took around 3-4 months to fall pregnant again. I am now 22 weeks preg. Good Luck.
did you have regular periods while the coil was in, sounds like it could be your period arrived. when i had my mirena in i continued having periods albeit very light each month. when it was taken out in jan this year so we could ttc baby 4. i bled a little for a few days after it was removed then had my usual period 2 weeks later. it took us 6 months to conceive the baby i am expecting now.