last week i was feeling fine...and went to my dr visit and she said i was 4cm..this week i feel…

last week i was feeling fine...and went to my dr visit and she said i was 4cm..this week i feel crampy everyday..and my back is soooo achy and my inner thighy bikini line area hurts A LOT and at times i just feel pressure. .i have another appointment tomorrow. ....do you guys think anything could have changed ????