When does the first genetic testing ultrasound need to be done by?


My dr keeps cancelling my appointments as she's sick...I'm 13w4d. They said she might cancel my apt tomorrow if she's not better. She doesn't work Fridays or weekends. My friend said it has to be done by 14 weeks. Ughh this is stressing me out. This is supposed to be my first appointment for this pregnancy and it's already been pushed 3 times.

Let me add ...I live in Canada so I can't switch doctors. She's usually great, this is my third pregnancy with her.