Yes, we all know there is more to conception than the birds and
the bees, but most of us don't stop and think about the science
of it. As anyone who has had trouble conceiving knows, it's
complicated. Doctors usually calculate the start of pregnancy
from the first day of your last menstrual period. This is called
the menstrual age and is about two weeks ahead of when
conception actually occurs. Do you know what happens next? Take
my quiz and find out!