Ttc.9th day of cycle.morning after sex i had red-pink discharge, after six hours i had again.what does it mean?is it smth serious?no other complaints

Spotting: Spotting is 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.