Help me please!!!

I feel really dumb for asking this question but here it goes. My daughter is 14 months old and hasnt been interested in nursing like at all....well were also in limbo of finding out if I'm pregnant with #2......what can I do so im not engorged......she was only nursing 1 time a day but she didnt nurse this morning and im feeling it. I bought cabbage to use but will that cause issues if i am pregnant and dry me out before #2 leaving no milk? Do I just deal with the pain?