Could i be pregnant ?

Its to early to take a test and its been 1-2 weeks since i had unprotected sex (i'm not on birth control and we didnt use a condom) first time was 2 weeks ago he cummed all 4 times and this happened 2 days after my period ended. Then a week ago and he cummed once, the second time i was in my fertile week. 
But i've been constipated, eating loads, feeling tired and been moody, i now have a yeast infection (and i dont get them regularly this is my second one) and having cramps in my stomach. I never have these symptoms before my period neither 
I dont know if its to early to tell and i'm looking far to into it! Any advice?