I've been trying to conceive for 12 months and have had 2 miscarriages. when should i see an ob?

After evaluation: So you have recurrent pregnancy loss. Those miscarriages could be caused by physical, hormonal or genetic causes. It would be worthwhile seeing a fertility specialist since the miscarriage could be the sign of something more serious or there could be something easily fixable. Getting pregnant easily does not necessarily mean have a baby will be easy.