Thats unlucky that it hasnt worked for you, i had mine put in 3 days ago, i had a bleed for 2 days, awful cramping for about 10 hours, and now nothing. I have to get the cord chopped, dr left it a little long... My mum has had it in many time... her only bleeds now are when her period is due, she goes to the toilet for a wee, wipes (sorry tmi) and thats her period...

Everyone is different, maybe its time to try the implanon, or depo shot. You just have to keep trying until you find one suited for you...

(BTw i got the IUD because im hopeless with tablets as well )