According to a study published by the National Center for Biotechnology Information, as many as one in three people will experience bleeding during their first three months of pregnancy, with the chances being higher during the first trimester. Agreeing, Dr Preethika Shetty, Consultant Obstetrician & Gynaecologist, Motherhood Hospitals, Kharadi said, “Sometimes, it can be serious, and at other times not even a matter of concern. But you must always consult a doctor in case of bleeding during any trimester,” adding that women can experience slight brown spotting to bright red bleeding that may last from a day to weeks accompanied with cramping or low backache.