if there is almost half penetration, even less, could it be possible to get pregnant even if he didn't reach his orgasm? i have been concerned ever since, it has been for three days and i read that even if the tip of the penis gets in contact with the vagina secretions ,this might lead to a chance of pregnancy. but i didn't feel any secretions from him and he tols me that he didn't reach orgasm or precum. so shall i be concerned about this?