pleasure during sex PLEASE HELP

Me and my boyfriend had sex for the first time and I was a virgin before him and he wasn't. We have had sex twice and both times I have a little pain at first that went away but I didn't feel any pleasure. I felt the pressure of him in me but I did not feel any sort of pleasure. I am 19 and was ready to have sex with him, was turned on and lubricated enough, and he is average size so I do not know why I can not feel anything other that pressure while we have sex. It is not painful but it is a little frustrating. Maybe it is because it's my first couple of times. Idk. Someone please help.