Few data are available on the effect of MenB vaccines on pregnancy. The manufacturers do not consider pregnancy to be a contraindication to use of MenB. GSK has established a Vaccination in Pregnancy registry. People who receive Bexsero during pregnancy may access information about the GSK Bexsero Pregnancy Registry here: https://pregnancyregistry.gsk.com/bexsero.html. Pfizer also maintains a Vaccination in Pregnancy registry for Trumenba, although specific contact details for this registry are not available. In general, vaccination against MenB should be deferred during pregnancy; however, MenB may be administered if, in the judgment of the clinician, the benefits outweigh any potential risk.