Back Pain

Fianna

So, 24 weeks in and the lower right section of my back had decided to give up. I'm in so much pain. I've been trying to do some yoga for back pain relief, but it's very temporary. This pain has woken me out of sleep and even walking is painful. Should I do heat pads? Cold compresses? I have a doctor appointment in 2 days and I'll ask, but anyone got some tips for the meantime?