I had the same issue at 25-26 weeks. But I still have the back pain. My cramps were pretty bad, worse than period cramps. But I decided to wait it out. Now 27 weeks I am fine. It is normal. But when in doubt feel free to call your Dr, they will be able to give you more advice. Try taking a warm bath. Lay on your side and breath. Relax I should say. And drink plenty of water
im 24 weeks too.. last week i had cramps and back pain, but now they stopped, except the back pain i still have it, especially when im walking.. i think its normal, but maybe its brtter to consult a dr