Infection — specially in chest and urinary tract — and fever are common during the pregnancy. But using antibiotics without consulting a doctor could be dangerous. Researchers from Montréal University of Canada say some antibiotics could cause birth defects if used during pregnancy. In some cases it could more serious. Researchers studied 1.4 lakh children between 1998 and 2008 and came up with a list of antibiotics which are safe and unsafe for use during pregnancy. The research has been published in British Journal of Pharmacology, recently