Heating pad use?

My lower back is in excruciating pain due to sciatic issues, an old sports injury, and from standing for 8-12 hours per shift. I can't remember the last time it didn't hurt, even with chiropractic treatments. I do not take any medications and my pain is so bad that I can't even sit up or get comfortable lying down. I am almost 9 weeks pregnant and I know this is only going to get worse. Has anybody spoken to their doctor about heating pad use? What did your doctor say? If it's ok, what time limit did they set for heating pad usage?
I will speak to my doctor when I see her on Friday, but until then, I am desperate.

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors