Since you got your periods, it is highly unlikely that you are pregnant.
But it is nothing wrong to do a home pregnancy
test if in doubt.
Usually wanting to get pregnant has psychological effect. This produces symptoms of early pregnancy when every thing is alright.
If this is not the case you need to check your blood for Hemoglobin
, and other tests for diabetes
take an anti emetic after doing HPT.
If the symptoms are persistent consult your Gync