1. Addition…
The Math of Motherhood starts in the parental planning phase. If I have a baby at 38 I will be what age when this baby graduates high school (38 + 18 = ?), college, If this child marries at 30 how old will I be, and so on.
2. Estimating…
Next, comes conceiving and estimating the best time to try. Then, of course, there is your estimated due date which is calculated at forty weeks from the day of you last period with that fun little round tool you doctor or midwife uses.