From major highlights to background context, understand everything about Priscilla Presley at 22: Archival Photos and Medical Timeline of Her Pregnancy in our latest feature.

The biological timeline confirms that Priscilla was not pregnant on her wedding day. The couple spent their immediate wedding night at a leased mid-century estate in Palm Springs, California, before traveling to their circle G ranch in Mississippi and settling back into Graceland. Conception occurred during this first week of May 1967.

Priscilla was born on May 24, 1945. On the date of conception, approximately May 2 to May 4, 1967, she was 21 years old, exactly three weeks shy of her 22nd birthday. Lisa Marie Presley was delivered at Baptist Memorial Hospital in Memphis on February 1, 1968, at 5:01 p.m., weighing 6 pounds, 15 ounces. The span between the May 1 ceremony and the February 1 delivery is exactly nine calendar months, or precisely 276 days, aligning with the standard human full-term gestation of 38 to 40 weeks.

Had Priscilla been pregnant before the Las Vegas ceremony, her delivery date would have fallen in late 1967. The strict 40-week timeline refutes decades of urban legends regarding a shotgun wedding, proving that Lisa Marie was conceived strictly within the bounds of their marriage.