Gynaecology & Obstetrics Ectopic Pregnancy (Hello ! Where are you ?) 13f60ac6 Plasma levels of hCG during pregnancy doubles every: A Daily B 2 days C 4 days D 6 days High-Yield Explanation In normal pregnancy it doubles in every 48 hrs In ectopic pregnancy it doubles in every 5 to 7 days These occurs only until 7 weeks of gestation.