I'm having a little problem....

A bit of history for me - have been suffering from SPD since early on in the second trimester, nothing unusual for me, just something I have to deal with. Some days it's ok, and others it feels like my pelvis is going to break apart.

Anyway I have noticed that whenever DH and I have sex, for the remainder of the day my SPD (in particular pain from the sciatic nerve) is quite bad. If we have sex in the morning, the pain will last ALL day . Standing for any period of time is painful and the pain runs down the back of both my legs from my lower back to just below my knees.

I don't know what to do. It's not something that I want to bring up with DH (sex isn't something that we are getting around to alot anyway with a very active 2 year old), but it is something that is holding me back from getting close to DH. What can I do to stop this pain or at least make the pain less?