it should go away after you have bub.
ice or heat never worked for me, but i was lucky enough to be able to take meds coz i want preg at the time (mobic- an anti inflamentry) i slept with a splint every night (i had it really bad on one side.. too much video games hehe) and during the day if it was bad id wear it then too...
id mention it to your MW coz they might be able to tell you a good way to make it feel better