Oh M., I feel for you! I remeber weaning the MOST painful part of nursing...UGH, so sorry! I tried EVERYTHING imaginable to get relief, and honestly the only thing that worked was time. Don't express too much, b/c the more you do the more you will produce, putting you back where you started! I got relief from standing in a hot shower and only allowing what milk came out on its own (w/o applying ANY pressure). I did drink sage tea (from whole foods) so if its permissable in pregnancy you can try that...the cabbage leaves didn't do much for me, but hey, if they work atleast a little, its better than nothing, right???
Best of luck with everything!!!!