Kerrie - I had four periods (real heavy bleeding) in four weeks on the mini pill. It's definitley less effective than the full pill as theres less 'active ingredients' shall we say.
The other option is the implanon - a small hormone thingy inserted under the skin on the underside of your arm. It lasts three years and can be taken out whenever.I am having the depot in a couple of weeks - did it really fail for you? How long after you had it?
Thanks - getting worried now.