A
beta hCG of 78.9 around five weeks since your last period is lower than usually expected, since levels are normally much higher by this stage. This single number alone doesn't confirm an ectopic or a failing pregnancy. It could also mean your dates are a little different than they seem.
Next Steps
Please get a repeat
beta hCG in 48 hours, since a healthy early pregnancy usually shows the level rising well in that time. See your obstetrician soon for a transvaginal ultrasound, which locates the pregnancy and rules out an ectopic one.
Health Tips
Go to the emergency department right away if you notice one-sided pelvic pain, dizziness, fainting, or heavy bleeding.