I m on susten200... am i pregnant???? plzzzzzzzzzz help.....?

i got my periods on last feb 7th... i m ttc.i started taking letoval on my 2-6 days on my periods.. then i ovulated on 19 th feb... and started taking susten200 vt lly for 14 days.. i dint get my periods till .. so i m adviced to take 3 more susten .. but still dint get my periods... so i took pregnancy test and it came negative.. so i consulted my gynec n she asked me to continue susten for another 3 days....my husband's sperm count is 22 mill/ml.. so he is also adviced to take maxoza... he is taking it about a month... can i be pregnant???? plzzz help.....