These are the normal, expectable, or frequent PERMANENT side effects of pregnancy:
-- stretch marks (worse in younger women)
-- loose skin
-- permanent weight gain or redistribution
-- abdominal and vaginal muscle weakness
-- pelvic floor disorder (occurring in as many as 35% of middle-aged former child-bearers and 50% of elderly former child-bearers, associated with urinary and rectal incontinence, discomfort and reduced quality of life)
-- changes to breasts
-- varicose veins
-- scarring from episiotomy or c-section
-- other permanent aesthetic changes to the body (all of these are downplayed by women, because the culture values youth and beauty)
-- increased proclivity for hemmorhoids
-- loss of dental and bone calcium (cavities and osteoporosis)
These are the occasional complications and side effects:
-- hyperemesis gravidarum
-- temporary and permanent injury to back
-- severe scarring requiring later surgery (especially after additional pregnancies)
-- dropped (prolapsed) uterus (especially after additional pregnancies, and other pelvic floor weaknesses -- 11% of women, including cystocele, rectocele, and enterocele)
-- pre-eclampsia (edema and hypertension, the most common complication of pregnancy, associated with eclampsia, and affecting 7 - 10% of pregnancies)
-- eclampsia (convulsions, coma during pregnancy or labor, high risk of death)
-- gestational diabetes
-- placenta previa
-- anemia (which can be life-threatening)
-- thrombocytopenic purpura
-- severe cramping
-- embolism (blood clots)
-- medical disability requiring full bed rest (frequently ordered during part of many pregnancies varying from days to months for health of either mother or baby)
-- diastasis recti, also torn abdominal muscles
-- mitral valve stenosis (most common cardiac complication)
-- serious infection and disease (e.g. increased risk of tuberculosis)
-- hormonal imbalance
-- ectopic pregnancy (risk of death)
-- broken bones (ribcage, "tail bone")
-- hemorrhage and
-- numerous other complications of delivery
-- refractory gastroesophageal reflux disease
-- aggravation of pre-pregnancy diseases and conditions (e.g. epilepsy is present in .5% of pregnant women, and the pregnancy alters drug metabolism and treatment prospects all the while it increases the number and frequency of seizures)
-- severe post-partum depression and psychosis
-- research now indicates a possible link between ovarian cancer and female fertility treatments, including "egg harvesting" from infertile women and donors
-- research also now indicates correlations between lower breast cancer survival rates and proximity in time to onset of cancer of last pregnancy
-- research also indicates a correlation between having six or more pregnancies and a risk of coronary and cardiovascular disease
These are some less common (but serious) complications:
-- peripartum cardiomyopathy
-- cardiopulmonary arrest
-- magnesium toxicity
-- severe hypoxemia/acidosis
-- massive embolism
-- increased intracranial pressure, brainstem infarction
-- molar pregnancy, gestational trophoblastic disease (like a pregnancy-induced cancer)
-- malignant arrhythmia
-- circulatory collapse
-- placental abruption
-- obstetric fistula
And a few more permanent side effects:
-- future infertility
-- permanent disability
-- death.