Mm that's strange. The depo if you're on it for awhile will mess you up and after being in it so long it'll take awhile for your body to straighten back out. Only getting a shot once shouldn't do much. After you get the shot it wears off in 3 months and might take your body 3 more months to straighten out but your definitely in the clear. Maybe you should go get your progesterone levels checked. Progesterone is the "pregnancy hormone" it helps support a pregnancy and helps you get pregnant. If low they can prescribe a progesterone pill for you to take and it should help.
♡Princess
I was taking antibiotics for a urinary tract infection. I only took Depo once 17 months ago and still haven't been able to fall pregnant :/
I was on it and my bf ejaculated in me all the time and I didn't get pregnant. Antibiotics are known to make birth control defective. So yea you could be pregnant.
♡Princess