My menses come at 27 Jun and it ended at 1 Jul so I had unprotected sex at 5 Jul but my boyfriend did not ejaculate inside me he came out and after about 5 seconds then he ejaculate. On 6 Jul I had brown discharge until 11 Jul whereby my menses come again. It last for 6 days and its quite heavy in the first 3 days. So am I pregnant?

If this is abnormal for you then you need to speak to a gynecologist or family doctor. No one can really give you that answer but a medical professional. The sooner the better just in case. It's possible to be pregnant and still have a period.