Just found out I’m pregnant. Now what?

I’m a nervous wreck right now. I’m thinking about creative ways to spill it to my husband when he gets home. I’m 26 but feel like I just achieved teen pregnancy. I’m literally just a girl. My hands are shaking. I have no idea who this cluster of cells is but they’re already my best friend. Holy shit. I’m keeping it because it feels like it’s meant to be. What do I need to know? What do I avoid? What should I start doing?