Is it possible 2 get a period and still be pregnant?

My cycle came on three days early and only stayed on for three days.. at first it started off slightly heavy but drastically slowed down.. I had been having pregnancy symptoms every since June 13th and now Im still having them.. Nausea breast tenderness mood swings etc.. I've taken 2 pregnancy test this was before my cycle came so i brushed it off 2 be that it was 2 early.. considering the fact that it would only be 2 weeks and some days.. so could i be pregnant.. and if not have anymore had a cycle then found out they was pregnant..