This is off the Virginia Game and inland fisheries website:

"The bag limit for deer shall be two a day, six a license year. Of the six deer limit, no more than three may be antlered deer and at least three must be antlerless deer. "

Now afte you have tagged out you can buy bonus tags, but they are only good for doe's. And in certain county's there are specific weeks where you can only kill one sex or the other. Luckily I live in a county where we can shoot doe's from start to finish of the season as long as you have a tag for it!