Am i going to get pregnant?

So currently i'm on the depo shot and it's been working really well, i don't have periods anymore, i only cramp a little bit when i'm supposed to and my SO has accidentally came in me twice and i'm fine. so i'm supposed to go back for my next shot the 12th of this month and right now i'm spotting a tiny bit and we were just having sex and he didn't really time pulling out perfectly like he usually does and he came in me. Am i going to be okay since my shots good until the 12th?