I reccently had sex with my boyfriend he didn't pull out,
Currently on the depo shot, been on it since 2014
It was due march 8th got it march 19th?
I had breakthrough bleeding on march 9th
I usuually get blood when I wipe this time I got it 6 days out not 7 like I usually do.

First pulling out does not stop someone from becoming pregnant. It may lower about of sperm but there is plenty of sperm prior.

So is there a chance, yes, no way to determine the odds. Just have to wait and test latter.