Is it automatically a high risk pregnancy at 38?

No: As long as your overall health is good, you would not atomaticaklly be classified as a high risk pregnacy. Age wise there is a slightly higher risk of chromosomal problems, but testing is available to determine you overall risk. Though any pregancy can start as low risk andbecome high risk as the pregnancy progresses.

Likely.: Advanced maternal age is associated with several adverse perinatal outcomes: stillbirth, aneuploidy, diabetes mellitus, hypertensive disorders and aberrant fetal growth are all more common in older women compared to younger gravidae. You should see a high-risk obstetrician for your pregnancy if you develop any of these problems.