Hi there, I appreciate your query. Cefadroxil is a safe antibiotic in pregnancy. I assume the antibiotic was given bearing in mind the report of your urine culture and sensitivity. Moreover, loose motions are a common side effect of Cefadroxil. So do not worry, the motions abate after stoppage of the drug. Please complete your course. And it is completely safe to take Sporlac DS during pregnancy, as it contains bacterial flora to combat the antibiotic effect. Also, maintain food hygiene, and consume food personally cooked or supervised by you. Avoid a heavy, oily or spicy diet. Consume lots of dahi / curd/ yogurt in your diet. hope this helped you.