Hi, I had sex on June 2nd or 3rd. I then received my period two days early on June 16th, and I usually have a 28 day cycle. I was supposed to get my period on July 13th, but I still have not received it. I have not had any pregnancy symptoms such as nausea, fatigue, cramps, breast tenderness, etc. I am wondering if it is stress, but I can not pinpoint or think of what would have given me stress lately. I also had an intense dance rehearsal the Saturday that just passed, July 15th, will that also affect the cycle? The period I had in June was not inplamation bleeding as it lasted for 6 days and was the usual heavy flow. I also have a doctors appointment in two weeks in case my period still does not show. Thank you, I could really use a peace of mind.