l was on depo took two shots and missed my third one maybe for a week.. me and my SO had sex last night and he came in me which I told him I missed my shot.. we already have two small kids i’m not ready for another. might I add im breastfeeding as well and haven’t had a period yet besides when I first took the depo. so I know my body is everywhere.. just wondering if there’s a big possibility I could get pregnant or do I need a plan b for safe?