I passed from c section in january 2019 and till july we didnt do intercourse. In august and septembet we did but no pregnancy. We r not using any mdcn to avoid pregnancy but did a tip that husband didnot discharge inside my vagina. He always discharge outside. But in oct, i didnt get periods and i did usg in decmber and get 3 month pregnancy. How can i pregnant when husband didnt diacharge inside me.