Bitter sweet: First time doing anal

So last night was my First time ever doing anal with my SO. Absolutely NO lube was used. It was a spur of the moment thing and I really did enjoy it in a specific position slowly but he went faster and faster I bleed a bit. And my God it was good but painful! His 🍆 is not small at all and he put it all in. Now it hurts and I haven't ate solids because I'm scared it will hurt to go restroom 😩 
Sharing my experience: 
I thought I was going to feel like I was going to poop on him or fart accidentally NOTHING of that sort happened to us.