Thank you for your query. Sorry that you are going through this. Congratulations.! How far along are you. LBA (low back ache) can become chronic for a lot of people. Posture, overweight especially breasts & abdomen, improper way of walking/or high heels, bad weight lifting techniques can all put a strain on your back. strengthening core muscles, reducing weight, maintaining good posture while sitting/standing, proper techniques while lifting weight can help to alleviate LBA. Being pregnant, the growing uterus, pregnancy hormones can put an added strain on your back by shifting the center of gravity. do not attempt to do any exercise , other than walking now. Use pillows, as many as you need. they are a blessing in disguise. use them to cushion the curve of your lower back (the curve)whenever you sit. use them between your thighs and a wedge/thin pillow under your abdomen when you lie down on your side. this relieves the added pull on the back. gentle massages with warm oil, warm baths can help soothe inflammation and pain. just muscular pain is still pain. and I understand how this answer doesn t help with putting your mind at ease. try all these safe methods during pregnancy. once you deliver, use a feeding pillow and a pillow behind your back when you feed. rest you back when you feed. if the pain persists after delivery and is severe, it has to be evaluated by a medical professional. any medication or OTC medications, creams you use should be checked with your OBGYN before use. the type of pain that should raise red flags is: - cramping at regular intervals with hardening of your uterus - severe twisting or poking pain of sudden onset. go to the ER or call your doc right away. hope this helps and you have a safe confinement. wish you good health. please get back to us for any further queries.