Talk to Gynecologist on No Periods.. And Bfn In Hpt

Assalamualaikum.. mujhy endometriosis hai .. mujhy doctor ny zoladex injection ka course dia tha 4 months k liye, injection lagwaty time b I got my periods for 2 injection cycle and then 3 rd k bad period nae hoye and 4th injection k 21 days bad periods hoye ... ab mera one week late hai periods I don't know kia issue hai kia pregnancy ho sakti hai ?ya injection ki wajah sy nae a rahay is month period jab k last month mujhy hoye hain periods... home pregnancy test strip py negative show ho raha