when does the womb of a pregnant woman rise about the pelvis?
Uterus Size During Pregnancy Think about blowing up a balloon and thatâs basically what your uterus does during pregnancy. Before pregnancy, the uterus is about the size of an orange and is situated deep in the pelvis. Uterus Size During Pregnancy: First Trimester Around 12 weeks pregnant, the uterus is the size of a grapefruit and starts to grow up and out of the your pelvis, but still fits within it. If you are carrying twins or multiples, your uterus will start growing and stretching sooner.