Is there such thing as "herpes gestationis"?

Herpes. This refers to genital herpes simplex that occurs during pregnancy and can be a risk to a newly born baby if active at the time of delivery.
Yes. Herpes gestationis, or gestational pemphigoid is a condition that typically presents in the 2nd or 3rd trimester with periumbilical blisters that spread laterally. However, it is not caused by the herpes virus, but is rather an autoimmune blistering disorder. This condition can have poor outcomes for the fetus and patients with this condition should be followed closely throughout pregnancy.