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newly sprouted pine seedlings will have juvenile needles, single needles not in pairs. They usually start making normal mature needles either late in their first season or sometime in their second growing season. A few species of pine can go 3 or more years producing juvenile needles. Most make the switch to mature needles by the end of the 3rd growing season if not sooner. Until you have mature needles it will be difficult or impossible to identify.
Pines in Virgina, your list of candidates could include Pinus strobus, Pinus virginiana, Pinus rigida, Pinus nigra, Pinus sylvestris and any of several spruce species. The sylvestris and nigra are naturalized invasive species, the Scott's pine and the Austrian pine.