Could I be?

Alyssa

UPDATE:

I did take a pregnancy test it was negative. I started getting headaches and feeling weird (like nauseous no puking, not as hungry, tired, can’t sleep tossing and turning trying to get comfortable) has anyone else know or experienced this?

So I gave blood today, I’ve never had any problems giving blood. A minute after I finished I began getting extremely hot and started puking, at first I didn’t think much of it til 20 mins later I puked again and the again 5 mins later. I didn’t think I could be pregnant until I checked this app and saw my period should be due in 5 days. They told me my blood was at a 51 and normal is a 30 well as soon as I began passing out they checked it again my vitals were fine and my blood was already at a 45 again... idk what that means but I’m very concerned at this point. Could I be pregnant even if I haven’t missed my period?