Confused in strip result

Bushi β€’

Hi beauties i had started my treatment for conception this month my doctor gave me "hcg injection" on day 13 of my cycle . Now i am 3 days late from my periods and today is my 4th day. I just want to know this from you all "IS THIS MY PRAGNANCY OR SIDE EFFECT OF HCG INJECTION " that i am not getting my periods and having this false positive i am very confused really plz help me ... 😒(i tested with these strips in the morning and saw in a video that hcg injection give you false positive test😒😒😒)plz help me πŸ™