hCG levels are not an accurate dating tool as they change very rapidly and vary from woman to woman. An ultasound will provide better infromation as to how far along you are.
5 weeks
A good place are Drakes. You can find them in the Ant Tunnel, which opens at Level 50. Go to Sleepywood and take the portal on the far right. Continue along the tunnel until you find the Drakes/Copper Drakes.
One can find out how far along they are in their pregnancy by consulting their doctor. A doctor can determine when the baby was conceived, and therefore how long it has been alive.
It means you are very early in your pregnancy.
225 ft.
Around week 20.
I tested today at 1800 and I'm about three and a half weeks along.
By medicine or surgery. The doctor will decide based on how far along you are.
I would measure the level of the customer satisfaction as far as the physical distribution is concerned based on the feedback that they will provide.
Have a vet or qualified AI technician do a rectal palpation on the mare. They can approximate how far along in gestation she is. It will only be an approximate though if the breeding dates are not known.
Roughly 20 weeks pregnant
4-5 weeks based on the chart from this website. http://www.americanpregnancy.org/duringpregnancy/hcglevels.html