Feeling a lot of pressure

I am feeling a lot of pressure I have had 3 pregnancies and my boys where preemies. I feel the way I do now with how I felt with when I had them. Almost doing the waddle and baby is very low. Was laying so low that I had a very sharp pain and then cramps for the rest of the day in what felt like my cervix. At night I now waddle because of how low baby is. Is this usual? This is my 4th baby now so I’m not sure if my body is just in hyper drive to get the baby low and ready 😫