Sex problemconsultation.

I am newly wed and while participating in sex I am not lubricating enough, due to which my husband is unable to penetrate. We are not willing to have children now. Hence have used durex condoms. We tried having lots of foreplay but the problem is persistent. We had tried thrice till now. I am still a virgin, and its becoming hard for him to hold his boner for hours to try to penetrate. We tried to force it in (it is very thick and I am feeling scared day by day as this is happening) using saliva, but it was giving burning sensation. We have never tried it again from then. I am scared that my husband may feel that I have some medical problems. I am scared to lose him. Can you please help. My skin is very sensitive, so please advice on the right condom and lubrication, which doesnot provoke in development of any kind of vaginal infections/allergies.