This could be pregnant, or in calf. By the way, its cows that are only pregnant, it is physically impossible for calves (as they are babies) to get pregnant.
about 270 days
Seven-and-a-half months of gestation is much too early for cattle. Calves born at this age are deemed premature and their chances of survival are quite slim because they are not quite fully developed. It is much better to let a cow carry a calf to full term (which is more like 9.5 months rather than 9 months exactly) than to force her to abort a calf too early and risk the calf's survival.
Gestation, or a gestation period.
pregnancy
It is commonly called a calf.
A fetus at 4 months of gestation is the size of a small cat--which is around 5 to 10 lb.
Bovine is another term for cow or cattle. Heifer is a cow that has had no calf yet.
An Australian term for an orphaned calf.
Another word for Pregnancy is Gestation.
Lutalyse or Estrumate are products you can give her to abort her calf. Make sure she's in the early stages of gestation first before you decide to abort her, otherwise if you abort her when she's in the last trimester of gestation, you may run into problems.
The common term is pregnancy. The technical term is gestation.
Gestation refers to the period of pregnancy. ie - A human gestation period would be 9 months.