Stabbing pain

So I’m 35 wks and 2 days I have talked to my dr once abt this in the beginning but she looked kinda confused so iv kinda just kept to myself. Since about 20 wks iv been having sharp stabbing pains in my lower side feels like a torn muscle in a way I do have a 2 n half yr old and 5 yr old daughter with moderate autism so maybe dealing with them all day by myself 24/7 could be causing it idk but I just wanna get some peace of mind is it normal?? I never experienced it with my other two it hurts so bad I gotta lay down and it normally goes away within 20 mins