Pelvic Rest

I have been on pelvic rest since 23 weeks, I am now at 29 weeks, and it is probably the worse thing ever. At first I didn't think it would be so bad, but not having sex for this long has started to majorly suck. My fiance and I will start kissing and things will start to get hot and then we have to stop and it's just not fair. I know my doctor put me on pelvic rest because of the fact that my cervix is shorter than average so they are worried about preterm labor but still... this shit sucks.