And Dr. Google shared a few insights with me. One, 70-80% of lumps found during pregnancy are NOT cancerous. Two, you can treat breast cancer during pregnancy without harming the fetus (under most conditions). Three, women with breast cancer in pregnancy do as well as those who are not pregnant -- for the same stage of cancer. But, four, cancers are often detected later in pregnancy because people delay and because they're hard to find. And since, five, you can get a mammogram in pregnancy, I called the office back and left a message that I want an ultrasound and/or mammogram. Ideally, they'll just find a fluid-filled lump on ultrasound. But if not, I could at least get going on anything else that needs doing.
Update: The first appointment for a breast ultrasound is 8/19, so I'll have to stew for a couple of weeks.