Though it may be referred to as the pregnancy line, its more technical label is linea nigra. Around three quarters of pregnant women will manifest a linea nigra, which is a brownish stripe that runs vertically down the stomach. There exact cause of this mark has not been ascertained, and it will typically manifest around the fifth month mark, though it can develop later.

An unborn baby’s fingerprints will begin to form between 6 to 14 weeks, though they will not be fully formed until around 6 months. There are factors in the womb that will contribute to how these unique patterns appear, which include the location of the foetus and the amount of movement he or she performs while in the womb.

Most miscarriages will pass naturally, meaning that the foetal tissue will pass from the body without any medical intervention. Some women will either voluntarily decide upon or be complied through necessity to have a D & C, which is a minor surgical procedure that removes tissue from the uterus or take medication that triggers contractions, which will hasten the miscarriage along.

This extra tissue growth — and the surgical removal of it — can cause scarring, which may obstruct the tube and keep the egg and sperm from uniting.

PCOS is the most common cause of female infertility.

While the follicle is developing, the cells around the egg produce the female hormone-estrogen. Each month oestrogen causes the lining of the uterus to grow and prepares the lining of the uterus (womb) to receive the fertilized egg.