Is it normal to have lower abdominal pain/discomfort? 24 weeks

Baby girl is still low, and especially when I’m laying down really flat I find my lower abdominal hurts and just feel’s uncomfortable, through out the night I have to keep switching positions because I get uncomfortable. Is this normal? Everything was completely normal at my 20 week scan, and I’ve felt like this before then but I’m guessing she’s getting bigger now