had trouble swallowing?! pls help lmao

so i was giving head for my first time and he came, except i didn't feel it? so i didn't know he was done, and i kept going. then i looked down and it was everywhere! i was so embarassed lmao, i really wanted to swallow my first time. could this be because he was laying down and i was over top of him? like gravity just made it all fall?? lmao idk. should i start going down on him in a different position? sorry this is such a weird question lol i'm just genuinely confused.