Question 145: A pregnant woman experiences non-menstrual bleeding during the noble month of Ramadaan. In spite of that she continues to offer Salaah (Prayer) and observe Sawm (Fast), is this right?
Answer: All praise be to Allaah Alone, and peace and blessings be upon His Messenger, and his family and Companions. The blood that a pregnant woman discharges is not menstrual; rather it is irregular non-menstrual vaginal bleeding. Thus, this woman has to perform Wudoo’ after the start of the due time of every Salaah and offer Salaah. It is also permissible for her husband to have conjugal intercourse with her. She should fast Ramadaan and not make it up later… read more here.