Hi. Welcome to HCM. According to your history u had unprotected sex on the unsafe day and there is high chances of pregnancy
. Spotting and cramping is common early pregnancy (up to first 3 months). A milky white discharge in early pregnancy is also common. But first confirm if u r pregnant or not by doing a urine pregnancy test (use morning sample of urine). If u dont want be pregnant consult a doctor for safe termination of pregnancy. Regards.