It didn’t fit...

Alright ladies, I’m in desperate need of help. I had sex for the first time yesterday and my partner was about to go inside, but then he looked at me and said “it won’t fit”. WHAT?! Is that possible?! Has this only happened to me? Literally the farthest he could get in was the tip and that was it. There was foreplay and we were both into it, so what do I do? Also I realized that I did start to bleed a little bit afterwards.