Intense lower back pain

I am 32 weeks, I've been with back pain for the past couple of months, but it is getting super intense, and I can barely walk, tylenol doesnt work, I walk, I do squads, I'm going for a prenatal massage today, but us just nothing is helping. I have an almost 3 years old which obviously rest is not an option. Qhat else can I do? And is it normal? It is very low to my ass bones, taking my legs, and I feel it coming with some cramping. I just want this pain to go away or at least the intensity of it.