#Pregnancy23weeks

Hi I’m first time mom here and I started feeling baby movements starting 19 weeks and now on but I feel pressure in my lower stomach sometimes through out the day and have some soreness down there it’s not like an all day thing but I do have some of that feeling throughout the day . Also pressure after I pee sometimes like it gets hard and pressure also with some backaches . I’m on my feet all day long due to working with children and picking them up and stuff like that . Anyone else having this or know what it can be ?