Right and left side pain on third trimester?

Kabuwanan ko na po 36 weeks and 2days na Nung nakaraan Yung right side na tagiliran kk sumasakit sakin ngayon Naman po Yung left side bakit po Kaya ganon? Normal po ba yon? And then kahapon po nilabasan ako ng brown discharge is it normal? #advicepls #1stimemom