Need some advice ladies

Laura • Hey I`m laura 19 recently had my baby boy :) been with my fiancé a short time and love him millions !
So I'm 24 weeks as of Sunday 15th may and for the past 2-3 weeks I've been experiencing really bad pain in the right side of my ribs across my back and in my hip . Painkillers and hot water bottles don't work one bit 🙈 what could this be what's causing this pain I'm almost in tears 🙁