What am I doing wrong

Alejandra

Hello I’m 20 years old my boyfriend and I have been trying to get pregnant for going on two months I had got the Depo shot in ending of may maybe early June I know they say it takes months for your period to come back and for you to be able to conceive but I got my period middle of August which was unlikely because I didn’t get my period for like 9 months on depo. After August I got a period And in September then I just got it. October 1 me and my boyfriend have sex every day he cums in me all the time why am I not getting pregnant. Is it me because it broke my heart to get my period today we thought I could have been pregnant I was 6 days late