My mom claims that she calculated the date I would be born more accurately than her doctor did because pregnancy usually lasts the equivalent of ten menstrual cycles, whatever the length of that woman’s cycle usually is. For most women, it’s about 28 days, so gestation is about 9.3 months. The doc calculated a date based on that average. Ma knew her cycle was usually a little longer, so she predicted ten full months, and she was closer than the doc.
I’ve never fact-checked her claims about that. Let’s assume if anything was incorrect in that statement, it was my faulty memory as a narrator, not that Ma was lying.
