Comparison of fetal size to fruit
During pregnancy, comparison of the size of the developing fetus to a fruit is a common practice.
The fruits used as a reference vary by source. One source, the Australian Department of Health describes an 8 week embryo as the size of a raspberry, and a 21-week old fetus as the size of a rockmelon. The Scottish National Health Service describes an embryo at 5 weeks of gestation as the size of an "apple pip" and a raisin at week 8.