am I pregnant?

Hi me and my boyfrond had unprotected sex about a week ago he came inside me both times sori lol and now I feel constantly sick and tired last 4 days I have beennon pill anout 7 / 8 years and last couple its been changed to mini pill I came off ot about a month ago and had a period bit only for a few days and nothing since ive juat done a pregnancy test but negative have I just done it to early or just not pregnant? Soo confused lol plz help thanl u! Xx