Germ growth, but the gestational sac is not growing, what's going on?

Patient's question:

No

Doctor's answer:

You can take some prenatal vitamins and then eat more protein-rich foods. This is not a major concern, as your menstrual cycle is relatively long, and ovulation may also be delayed. In other words, your actual pregnancy duration may be shorter. This reason could explain why the baby is smaller. It is recommended that you continue with follow-up examinations.