Signs of pregnancy

Gill
Hi, need some help don't know if to test or not?? For about a week and a half I've been really bloated, sore nipples and waking up with heart burn( which I never get). My period isn't due for another 4 days. Are these all signs of pregnancy? Could I be making my body feel like this cause I want to get pregnant. Should I do a test? 
Thanks in advance xx