"Have some of hubby's sperm frozen, and then a vasectomy. Then if I change my mind, there's always A.I."............................Now THAT'S intelligent family planning. As an added bonus you can still have his baby even if he gets run over by a bus!
I must confess there is not a lot of direct evidence that Mirena reduces chances of infertility or that Paragrd increases it much. Over a woman's lifetime I suspect that appropriate contraception (including IUCDs) and appropriate choice of partner (to avoid infection) will prevent a lot more infertility that without adequate contraception. Certainly the chances of, say, ectopic preganancy are MUCH lower with IUCDs than without any contraception despite the belief that IUCDs increase chance of ectopic preganancies.....The pressure many doctors put on a childless woman to NOT have an IUCD fitted are, IMHO, ridiculous and unfounded with the proper use of modern devices to women in monogamous sexual relationships.