Lifted heavy object now back hurts

Mary

I made the mistake of helping my husband carry 3 dressers into the house today. He was on one end and I was on the other. Now my low back is really hurting. I'm not cramping in my abdomen though and I feel baby moving. I took some tylenol and am now resting. But I'm worried. Could I have hurt the baby? Or caused any problems with the pregnancy? Do they say not to lift heavy things for your sake or the babys sake? In other words, are they worried you will hurt the baby or just hurt yourself? If I just have a back ache then I can deal with that. But if theres more to it then I'd like to know. I feel guilty. I shouldn't have done that.