If you are longing for answers to why you miscarried, you're not alone. Many couples find the lack of any explanation for their miscarriage(s) to be one of the hardest aspects of the experience to accept. You may be wondering whether you need testing for miscarriage causes before you try to get pregnant again.
If you've had one miscarriage that happened before 12 weeks, you probably won't need any testing. After one first-trimester miscarriage, your chances of having a successful pregnancy next time are high. There's no evidence that testing for causes offers any clinical benefit after one first-trimester loss; for this reason, insurance companies usually won't cover any followup testing at this point. Most doctors won't order such testing for the same reason.
If you've had more than one miscarriage, or if you have had any pregnancy loss in the second or third trimester, consult with your doctor before you try for a new pregnancy. In these cases, it may make sense to rule out disorders such as antiphospholipid syndrome or problems in the uterus before you become pregnant again.
Miscarriage. March of Dimes. Accessed: Dec 1, 2009. http://www.marchofdimes.com/professionals/14332_1192.asp