How old are the two babies of the pregnant woman?

Patient's question:

No

Doctor's answer:

Alright, here it is translated into English, keeping the line breaks as they are:
Okay, as long as everything is normal. This isn't a baby yet, it's just an embryo. It's only after the fetus takes shape between three and four months that it becomes a baby, with arms and legs and all that. Otherwise, it's just an oval shape. Measure the size to see if it's within the normal range.