Hi.. Get the pregnancy test done.. It is the only way of knowing if you are pregnant.. If you are still doubtful, a vaginal ultrasound examination can help you in knowing if you are pregnant.. If you and your partner have no conditions that is preventing from getting pregnant, then a health diet, good sleep, avoiding stress along with frequent sexual intercourse during the fertile period of menstruation (that is on the days you are expected to ovulate) can increase the chances of pregnancy... All the best...