I had sex with my boyfriend on the 2nd of augest when it ovulation day but after that I been sick, had headaches, had off and on tummy pain and heart burn it been 5days now /: so dose that sound like pregnant symptons?

My period not due till the 10th of augest

That actually sounds like PMS symptoms.
You absolutely could have gotten pregnant. But you will have to wait a few weeks, wait for your period, and test to find out.

But it stop now I had them for 2days still got sickness and all that but its gone down /: