Had an unprotected sex for 1 min in the 2nd day before my ovulation could i get pregnant? i experiencing bubbling sensation in my lower abdomen and pain im my upper left side of pubic bone/uterus and back pain, my next expected period is on tuesday?

It's possible: A urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her normal regular period, then she is not pregnant, and a test is not needed.