First rule out life-threatening causes of<unk> uch as SJS or TEN
Multiple pruritic<unk>  associated with pregnancy including:
Atopic eruption of pregnancy
Intrahepatic cholestasis of pregnancy
Pemphigoid gestationis
Pruritic urticarial papules and plaques of pregnancy (PUPPP)
Pustular psoriasis of pregnancy (previously Impetigo herpetiformis)
Non-pathologic skin changes in pregnancy:
Melasma (facial rash)
Hyperpigmented Linea Alba
Striae gravidarum (stretch marks)
Atopic eruption of pregnancy
Intrahepatic cholestasis of pregnancy
Pemphigoid gestationis
Pruritic urticarial papules and plaques of pregnancy (PUPPP)
Pustular psoriasis of pregnancy (previously Impetigo herpetiformis)
Melasma (facial rash)
Hyperpigmented Linea Alba
Striae gravidarum (stretch marks)
Fever
Toxic appearance
Hypotension
Mucosal lesions
Severe pain
Very old or young age
Immunosuppressed
New medication
Rashes of pregnancy
Onset usually 1st/2nd trimester
Vaginal bleeding in pregnancy 
Types:
Abdominal pain in pregnancy
Eczema
Septic abortion
Flexural surface distribution