My chicken has been trying to lay all day?

well i have raised birds my whole life. if your sus hen is laying near shelless eggs you need to feed them oyster shells. you can get them at your local feed mill. it makes your egg shells harder and thicker. as for your other hen if she is constipated get some chicken mineral (also at local feed store) to help her lay easier. either she not getting enough protien or they do that when they are dehydrated or molting. hope this helps