Help!!!!!!

I lost my virginity on 1/10/18 it is now 1/15/18 I’m freaking out because the guy told me after he was trynna get me pregnant and of course now I’m suppose to start my period today and I still haven’t I mean I’m really stressing but like I just feel so different like I had headaches everyday now , I pee every 5 minutes , I’m constantly hungry and I have had bad diarrhea this morning , I’m completely terrified but I have been cramping and feeling like I started my period but there’s no blood !!! & my family is very fertile so I’m screwed pretty much I need help is it to early to take a test I’m super scared .