Just seen this so thought I'd add a few words. We'd always decided that when I was 30 DH would have the snip so I could stop the pill. So, there was a pill scare when I was 29 so I had a copper coil fitted. Very little problems, periods not much heavier than when I was on the pill, and in those days I was training 4 times a week finishing a workout with 100 situps - I wasn't mad, just wanted to be in shape before I was 30.
Then some man, it had to be really, decided that the good old copper 7 made it difficult to conceive and my lovely coil was replaced by a gravigard T which I hated. Whenever I did so much as a single situp I had heavy spotting the next day, and had really heavy periods. The practice manager and I decided that we would like to fit the gentleman with a gravigard T sideways, complete with launching mechanism, coated with chilli powder etc.
So, I went back on the pill again. Along came 40, and it sort of hit me that 'if' I had better get a move on. So, stopped taking the pill, was about 5st overweight (undiagnosed underactive thyroid), convinced myself I couldn't get pregnant, and would give it 6 months........had unprotected sex only twice, got pregnant twice, first didn't take properly, and had DD less than 12 months after stopping pill. Scared me witless when I thought of risks taken in an earlier existence.
Stopped bf, tried mini pill which didn't suit, then had Mirena fitted, had a period that lasted nearly a year, it just doesn't suit some people . Then decided that I'd had enough and went back saying I was completely knackered, and threatening to take it out myself if need be, cos my GP protested that they were expensive.....
So, I'd say that the original copper 7 that I had was the best of the lot, might try one again if I can pluck up the courage to ask for one in french!