Or to be more precise, a woman has 3.3 percent chance of conceiving twins naturally. By naturally, we mean without any kind of fertility treatment.

Though this is only a ball park figure, as some women will stop bleeding as early as a single day while others will experience bleeding that exceeds two weeks.

A two month old may begin to act fussy or cry if they are in one position, or doing one activity (such as laying on the floor) for too long.

Diaper rash can worsen, leading to possible infection. If the area bleeds or oozes, or is accompanied by a fever, it is a sign the condition is worsening. A physician can prescribe a treatment based on the type of ailment being experienced.

The umbilicus is the small piece of cord left after it has been cut following birth. After several days it will fall off. Keep the area clean and dry, and watch for signs of infection such as pus or redness.

Sometimes, female infertility is related to a hormone problem. In this case, symptoms can also include: skin changes, including more acne, changes in sex drive and desire, dark hair growth on the lips, chest, and chin, loss of hair or thinning hair, weight gain.