He's too big!

So, my husband and I have dated on and off for the last 5 years until we tied the knot in October. This it actually the first time we've actually went past 3rd base. Even though I knew how big he is, I didn't expect it to be so painful (virgin Mary) painful. We have sex maybe 3 times a week on average if he's not too tired from work. I'm noticing everytime he tries to push his big happy thing inside me it's like driving a screw driver into a needle eye! An suggestions? (Foreplay, Oral and all of that doesn't seem to loosen me up down there)...