Could Loss Of Appetite After Unprotected Sex Be A Cause For Concern, Or Is It Normal?

Hi doc .can you tell me what could the possible reason be .i had sex and unprotected sex on the 17th-19th april and ever since then after sex i do not have an appetite for food is it normal or should i be worried perhaps .i do eat but only little bits food n drinks don t wannt to really go in but haven t been Hungry eversince.