I had lots of leg cramps with my first pregnancy until I was told about a way to help. Sit with you legs out on a chiar in front of you. Point your toes forward then pull them back so you feel the calf muscles stretching. Repeat this for about ten to fifteen minutes or whenever you can. This completely stopped the cramps for me and helped with sleeping a little.

I went through everything you went through when i was 6 months pregnant. try laying down during the day, keep your leg's elevated i did that and it helped out with the pain a bit.. try not to be on your feet alot, or sit alot.. rotate it if you can. when you're laying down lay on your left side, thats the way i was suspose to lay because the blood rush's down quicker to the baby and what not and it's better for the baby. if someone at home is with you when you have back pain's, i would get someone to give you a light massage, it does help. i had my husband do it whenever he was home, and it worked! i hope i helped a bit!