Hi mama! Based sa standard prenatal care dito, usually one dose lang ng anti-tetanus during pregnancy, pero depende talaga sa OB mo kung kelan last shot mo before, if you haven't had one in 10 years, they might give it na ngayon habang 24 weeks ka pa lang. Best to ask your OB directly kung ilang doses na talaga ang kailangan mo based sa your vaccination history, kasi iba-iba depending sa medical records mo!