12 week ultrasound

Christina
my doctor's office does not usually do an ultrasound until 20 weeks!! since I already have twins and I have a high twin rate In my family I'm having a 12 week ultrasound on Tuesday. Ill be 12 weeks 3 days the doctor will be doing the ultrasound in the examination room. Any chance if there is one baby we might be able to find out the sex this early?