Hello Thanks for writing to us with your health concern. Just 2 - 3 days after intercourse, you cannot start perceiving the signs of pregnancy. yes, to answer your question, it is indeed too early to tell. The earliest that a pregnancy can be detected is when you miss your normal periods and that is the proper time to take a pregnancy test. Nipple soreness and bloating could also be premenstrual symptoms. They could indicate an approaching period. In order to achieve a pregnancy, it is essential to have unprotected sex around the time of your ovulation. In a normal 28 day cycle, ovulation generally occurs around day 14. If you continue to be sexually active from day 10 to day 20 of your cycle, it ups your odds of conception. Pregnancy symptoms generally start atleast 10 days after fertilization occurs. Try and track your ovulation , and then try to conceive accordingly. Take regular 5 mg per day folic acid tablets. All the best Take care.