No. Heifer calves only have four little tits where the udder will be after they have their first calf. Heifer calves, when the do become mothers themselves, are no longer considered heifer calves, or...
A cow is a mature female bovine that has had a calf. A heifer is a female bovine that has not had a calf. Therefore there are two possibilities: one, the cow you are referring to already had a calf...