I had my DS after two rounds for IUI. TTC for 2.5 years with the only possible cause of infertility being my uterine lining not being sufficient (I had extremely light periods). We would like another baby fairly soon and I don't know whether I should be preparing myself and our bank balance for more fertility treatment or if anyone has found that they found it easier to conceive the second time. Our consultant said that sometimes pregnancy 'cures' infertility but I don't know if she was just being nice.