Annoying lower back pain

So I’m estimated to be around 5 weeks now. Have absolutely no symptoms other than sore boobs and a positive test. I’ve had chronic lower back pain for years, but lately it’s been somewhat worse since I found out. It only seems to be worse when I wake up, and then subsides as the day progresses. Has anyone else experienced this? What to you do to relieve it? My doctor says all she recommends is taking Tylenol, but I rather not medicate. This would be baby #3.