Hi Doctor, We're Newly Married Couples, While We're Trying To

Hi Doctor,

We're newly married couples, while we're trying to have sex and during penetration my penis didn't entered in her vagina. It seems that her vagina hole seems to be small. Also while i tried to insert my penis forcibly into her vagina and ejaculate, we both didn't feel any pleasure. It seems that this act is mechanical. Also she feels pain during penetration (either by penis or hand). Please advice