So a few days ago I noticed some itching on my chest. I thought it was just maybe a pimple coming in so I didn't think much of it. Well it's been a few days and the itching has increased and now I have a bunch of welts on my chest/breast. They are swollen and painful but really itchy. I've noticed some itching in my armpit area and the back of my arm but there's no bumps. I'm wondering if it's spider bites. I also just found out I'm pregnant, on Friday. What do you think??