Losing my virginity (he didn’t cum)

I finally lost my virginity last night. It was to a guy who I’ve been flirting with but not dating, I didn’t want it to be over hyped. Not to be too NSFW but he was pretty big. Lengthy but he was thicker than anything of seen, kind of fat? We used a magnum condom and it didn’t fit, it was too tight. He had getting inside me the whole and I tried to guide him but honestly I’m a little small so he didn’t really fit that well. After the pain left it felt better but, the problem is I couldn’t get him to ejaculate. We tried at least five different positions but nothing was working. And it’s not that he’s not attracted to me because he definitely is. I even have him a blowjob and that still didn’t work. I made sure to listen to what he reacted to and tried to do that most. Any tips to make it better next time?