Lady delivering again

My Chihuahua, Lady had given birth to 4 pups again dis time. DOB: In between 20/05/09 9:45pm to 21/05/09 midnight. Gender: Dis time opposite gender comparing to last batch, it's 1 male & 3 female. Color: 2 white with black or choc spot, 1 black & 1 dark choco. Estimated Mated based on my prior delivery: 17/03/09