being too tight

My boyfriend and I were fooling around and we literally can't get it in. We tried again and he fingered me and said I was too tight and he had to stretch me out, I told him he's the only thing that's ever been insid em (never used tampons, couldn't get them in) so he opened his fingers to try and stretch me out, well I started to bleed a bit and now I'm at a loss for everything. Sex is a primal thing and I apparently am the one who can't have sex. Any advice?