When my husband penetrates me during sex, i feel like he needs to go deeper down but even though he pushes, it doesn't slide more in. i also can't feel him inside me mostly but he says he's in. is there a problem with me?

Maybe you are not the problem. Sexual congress is a function of two people finding a compatible position for mutual gratification. Try positional variance.in which you can exercise a measure of control of depth and clitoral stimulation instead of the "missionary" position. If there is still a problem, see a GYN MD to assess the vaginal area if you have had multiple children vaginally.