Cervical mucus is a fluid that is from the cervix. Estrogen helps produce cervical mucus during the first phase of a monthly cycle. Fertile cervical fluid helps protect sperm from the acidity of the vagina, therefore protecting it. Cervical fluid also helps sperm in moving up to the fallopian tube where fertilization takes place. Without cervical mucus (or fluid) sperm would die within an hour or so, therefore making cervical mucus is necessary for conception.
Egg white cervical mucus (EWCM) is a type of cervical fluid that is produced right before ovulation. This mucus is called EWCM because it strongly resembles raw egg white in that it is clear or streaked and is very stretchy and can be watery. By placing your clean fingers into your vagina and obtaining a sample you can check for the appearance of EWCM. When a sample of mucus is between your fingers, it may stretch for several inches and should like somewhat like raw egg whites.
Women in their twenties typically have more days of EWCM than woman in their thirties. Although it is not always true, women in their twenties will have around 5 days of EWCM and woman in their thirties may have only 1 or two days with EWCM. Being that this mucus is necessary for conception you should try to increase the amount you have present. Do not smoke and cut back on caffeine. Drinking lots of water may help also.