I totally understand--DH and I started trying for baby #2 in July 2013. We got our BFP in December 2013, and then lost it within a week. We were completely shocked and devastated. We decided to try again as soon as the doctor cleared me, and got another BFP in February 2014. I was TERRIFIED of miscarrying again. But I am now 37 weeks pregnant with a healthy baby boy. : ) Worrying is completely normal and natural--and as much as it stinks to say it, most of the time there is no reason behind miscarriage. So many people experience loss, and then go on to have healthy, happy babies. I pray that this is the case for you and your wife--I hope you both can relax and enjoy this pregnancy!