This is just a bit of fun to test a theory 
I stumbled across this and wondered if those who have their scans could confirm or disprove it in their experience...
^"According to Dr. Ramzi, 97.2% of male fetuses had a chorionic villi /placenta location on the right side of the uterus whereas, 2.4% had a chorionic villi /placenta location to the left of the uterus.
On the other hand, 97.5% of female fetuses had a chorionic villi /placenta location to the left of the uterus whereas, 2.7% had their chorionic villi /placenta located to the right of the uterus."^
So it would seem to be highly accurate.
If your scan was an external scan then it would be mirrored so if you can see the yolk sac to the left of the baby, it would actually be on the right.
Internal scans should be exactly how the scan picture shows.
I thought it might be fun to see how many of you this has proved accurate for.