Yes, it could be CAH....most likely the non-salt-wasting. Many children don't present with symptoms at birth. Our daughter (nonSW CAH) was 3 years old when we first noticed pubic hair. Make sure the doctor checks for CAH (blood tests include 17-hydroxyprogesterone, androstenedione, and plasma renin). Actually, late onset CAH is later teen years to adult, not just over 2 years.