I live where there’s snow this time of the year.. my husband is at work and he works all day and night, so I decided to shovel the driveway so he didn’t have to at midnight when he gets home.. anyways my lower back and hips hurt now, and it was t much snow, it only took me 20mins.. is this normal? I’m 32weeks, and have risk of premature labor, I’m dilated to 1.5cm since 25weeks..