For the purposes of these regulations, the following definitions apply:
What, in the judgment of the attending physician, based upon the attending physician's examination and the woman's medical history, is with reasonable probability, the gestational age of the embryo or fetus at the time the abortion is planned to be performed. This estimate must be guided by recommendations found in The American College of Obstetricians and Gynecologists Standards for Obstetric-Gynecologic Services, i.e., calculated from the first day of the last menstrual period.
Calculation | Weeks of Gestational Age | ||||||||
Conception | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
LMP | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 |
S.C. Code Regs. § 61-12.I.101