Ok ladies I'm 33 weeks with my 3rd, and everytime I sweep or mop my lower back hurts so so so bad. Especially today! I was sweeping the floor, only for about 2 mins and all of a sudden I got this huge cramping feeling in my back. Usually when I sit down it goes away immediately but this time it wasn't going away quickly. I yelled for my hubby and he started rubbing it and that wasn't helping, and he layed me down on the couch and it slowly started going away. I'm fine now but I'm just curious, are they contractions? Or just pain from sweeping? Anyone experience this??