I came on my period 06/16. had unprotected s around my ovulation days 6/29-7/1. 7/13 light pinkish blood that stopped.now brownish. period due on 7/16?

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.

Monitor your cycles: and do a home pregnancy test. Unprotected intercourse will ultimately lead to pregnancy. see your GYN for a pelvic exam and evaluation.