Very light cramps at 22 weeks?

MariasMommy👶🏽👑 • 08.29.13 when I met my King 💯❤️ 12.17.15 when we met our princess 👶🏽👑
I mean VERY VERY light. I haven't really been drinking a lot today or moving much and an hour ago I went to Walmart to shop and pushed the cart around and carried groceries, I've been having very very very light cramps the past 30 mintues but not continuous I've felt maybe about 5. They don't hurt and I've had very light cramping before here and there. Baby is still moving a lot right now she's been moving a lot like she usually does. Is this stretching or...? No actual cramps or spotting or pain