pregnant or not


Imma make it's quick hopefully lol . so last month I never gotten my period on the 2nd I did blood work and urine test says everything came out negative so my doctor prescribed " memedroxyprogesterone " for 14 days and I should have got my period So I did but the beginning of my period was light pink and brownish and I had my period for 6 days it ended on the 27th of last month but ever since then I've been feeling very very sick my back's been hurting I've been having slight cramps I've been feeling really light-headed some reason is there a way I could have been possibly pregnant or pregnant ??? also I took in a couple tests and it came out light positive but when I took in the First Response test I didn't see nothing until the next day I seen a slight line