Abortion

spontaneous or elective termination of pregnancy before the 20th week ofgestation based on the date of the last menstrula period. SA is also called miscarriage

Amenorrhea

Absence of menstruation, either a delay of first menstruation (primary amenorrhea) or cessation of 

of mesntruation after its initiation

Braxton Hicks Contraction

Irregular, usually mild uterine contraction that occurs throughout the pregnancy and become stronger in the last semester.

Chadwick's sign

Bluish purple discoloration of the cervix, vagina, and labia during pregnancy as a result of increased vascular congestion.

Goddell's sign

Softening of the cervix during pregnancy

Hegar's sign

Softening of the lower uterine segment that allows it to be easily compressed by the sixth week of pregnancy.

Diastasis Recti

Separation of the longitudinal muscles of theabdomen (rectus abdominis) during pregnancy

Melasma

Brownish pigmentation of the face dueing pregnancy also called chloasma and "mark of pregnancy".

lightening

descent of the fetal head into the pelvic cavity at 40 weeks. Reduces pressure on the diaphragm and makes breathing easier.

tubercles of montgomery

sebaceous glands that becomes more prominent during pregnancy and secretes a substance that lubricates the nipples.