A pregnancy test measures the levels of hCG in urine
Read the full article on: Pregnancy Symptoms but Negative Test, What Else Could It Be? ( 40).
By Ana Mª Villaquirán Villalba MD, MSc (gynecologist), Clara Miret Lucio BSc, MSc (embryologist), Sara Salgado BSc, MSc (embryologist) and Romina Packan (invitra staff).
Last Update: 04/15/2014
