I Had Unprotected Sex Last Friday And It Was My

I had unprotected sex last friday and it was my first time so now i am so worried about HIV. She is the girl whom i hardly know and she also told me that not to worry about HIV she is totally clear and in my country hiding of HIV status is also crime.
I dont have any symptoms but sometime i feel cold and mild fever when i woke up and i searched alot on Internet about sysmpotms and all. so i am feeling depressed. It is one week now and i dnt have anyother symptoms only mild fever for less time.so my question is
shall i go for HIV test?please help me out