19 Kids and Counting star Jedidiah Duggar and his wife, Katey Duggar, welcomed twin baby girls, who join the couple’s son Truett Oliver, 2, and daughter Nora Kate, 19 months, in the family. Jedidiah Duggar’s household can count two new members. The 19 Kids and Counting alum and his wife, Katey Duggar, welcomed twin baby girls Jan.…