Week 31
Weight gain on the fetus speeds up. Your own gain has a wide healthy range. Do not diet. Ask for a personal target if someone shames a number.
Length and weight
Length41.1 cm
Weight1500 g
Early weeks are crown to rump; later weeks are head to heel. The bar is not a ruler. It is a rough comparison with the average at week 40.
Approximate
Ask your midwife or doctor before you change medicine, herbs, or a birth plan.
Related
The third trimester
The work now is pattern: movement, swelling that is ordinary, and swelling that is not.
Sizes and dates are averages. Feeding and sleep notes follow widely published public-health guidance, including World Health Organization infant-feeding advice and back-to-sleep recommendations. They are not a protocol for your hospital.