We're currently using the pull-out method after me having the coil for 18 months, whilst we decide when we want to properly TTC.
I've only allowed it because I know within the next 6 months ish we will want to start TTC, and if we did have an accidental pregnancy we wouldn't be too upset. However, from what I've read now I've researched it a bit, it's actually quite an effective form of contraception. If it's practiced properly and your man is experienced then it can be as reliable as using condoms I think. The reason it's strongly discouraged in sex education for teenagers is because they're usually young, inexperienced couples who won't practice it properly in which case the effectiveness is reduced a lot! x