Generally, the prenatal blood tests involved at this stage check for protein and hormone levels that may sign fetal abnormalities. You will discover other situations the place the nub is observed to have an upward tilt, climbing from the baby's rump. This leads to a visible gap beneath it. For https://genderuncover.com/product/unveiling-the-nub-early-gender-clues-with-nub-theory-prediction-service/