Had a period about 2 weeks ago, started spotting today, had intercourse 2 days ago.. possible sign of pregnancy?

Irregular periods: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections & hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit

To early to tell: To early to tell. I suggest you check a pregnancy test 1 week after a missed period. The spotting could be spotting associated with ovulation.