How soon can the gender of a fetus be determined?
The earliest a doctor will have a radiologist determine gender is about 12 weeks. Most wait until week 16 through week 20. Determining gender by radiology is not an exact science. A fetus could be in a position where it is difficult to see the genitals. Your radiologist may attempt to coax the fetus into another position where it is more visible. You could also consume something containing sugar, such as juice, (no caffeine!) which will make the fetus somewhat more active. Amniocentesis, if you must have one completed, is fool-proof in determining gender of the fetus through chromosomal testing.
