Hi . I last had period around dec1st and i had an intercourse on dec21st , i generally have irregular period .I didn't get my period on jan1st  . I took home pregnancy test on 10th of jan and blood hcg test  on jan 12th both came negative(1.2)( last had period on dec1st, ) and after that i tuk tablets and i got period on 27th..Should i take pregnancy test ? Is there any chance of me begin pregnant ? I got my period late on jan 27 instead of jan1st .I took tablets after those tests resulted negative.