The blood vessels in the lungs are developing and the nostrils will start to open. The spine is forming as well. From here on the physical proportions of the baby are complete and the remaining development is mostly weight gain and nervous system development.
Maternal Changes on Week 25
Your uterus is the size of a soccer ball, and you are sure to experience back ache. Your hair may also be thicker and darker from the way the hormones have been affecting your body, but do not worry your hair will return to normal after delivery.
Pregnancy most commonly lasts 40 weeks, this website provides information of a general nature and is not a replacement for professional healthcare advise. There are many factors that can influence a pregnancy due date including age, ethnicity, number of previous children, and length of menstrual cycle. Every woman's pregnancy is different and the due date can only be estimated within a certain degree of accuracy.