I have had two unexplained miscarriages in arow am now pregnant again what are the chances of having a 3rd aged 23?

Higher than usual.: All things being equal, your chances of miscarriage with this pregnancy is slightly higher than that of other women your age. But because you are young, you also have a higher chance of a successful pregnancy, especially if you're healthy. If not done already, your OB should get an HCG level, pelvic exam and ultrasound. If everything looks good, chances are you'll have a healthy a baby