Need some advice

So I’ve been seeing the guy for a couple weeks now and last night he came over and things got a little sexual. The foreplay was good but when it came to actually having sex he had a hard time staying hard and had a difficult time staying in.Idk if it was bc he was nervous or he just actually didn’t now what I liked bc we never had that conversation. He’s also definitely on the smaller side which is fine but it seemed like he didn’t know how to use that for his advantage. Maybe it will get better and we keep hanging out but I just wished he had some more confidence when it came to actually having sex. 😫😫