I've been feeling dizzy lately. having stomach aches and back pains. i also have spottings. what should i do? are these a signs of pregnancy?

Pregnancy worries?: A urine pregnancy test gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), 1 week after missing a period, or 1 week after starting a "weird" 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.