Positive po ba?

Hi everyone! Tanong lang po kasi parang nararamdaman ko na nmn ulit ung feeling nung unang pregnancy ko like Yung parang naduduwal and halos ayaw ko kumain ksi feeling ko diko gusto ung lasa. Is there a possbility po ba na pregnant ako since kakatapos lng ng period ko last week Saturday may pahabol pa pero nag start ako makaramdam ng ganito since Monday. TIA