one sided contractions?

idk if that makes sense but did anyone experience pain on only one side? i keep getting an intense “zing” pain on the middle of my right side. feels like i’m being stabbed and then they’re taking the knife and twisting or something? not sure if it’s a contraction or what... i’m also experiencing period-like cramps here and there. earlier he kicked me and it felt like a pop in my stomach but it wasn’t up in my ribs so idk what it could’ve been. called my midwife earlier due to some bleeding when i wiped but she never called back. i’m almost 37 weeks. sorry i’m trying to explain the best i can but idek what i’m feeling 🤨