I miss SEX!

I'm 33 weeks and I haven't been able to successfully have sex for several weeks now. My husband and I try but my stomach contracts and it's sooo painful no matter the position. We have tried everything! I love him so much and miss our intimacy! Even just fooling around hurts because anytime my lady parts get "worked up" it causes my stomach to contract! I just miss him....is there anything I can do about this or are we out of luck until I'm healed after delivery?