Can slight pain in your lower abdominal area and dizziness be signs of pregnancy?

Yes, that is a sign, but it is also a sign of ovulating. Wait for your period to start & if it doesn't take a test.

Your symptoms of pregnancy will usually appear anywhere from the first week of your expected period to 1-2 weeks after your first week of expected period. Your first signs of pregnancy most commonly include missed period, tender/swollen breasts, change in color of the breasts, fatigue, nausea/vomiting, increased sense of smell, and weight gain.

Here is a link to a website that will calculate the probability of your pregnancy: http://www.thepregnancytest.com/