Mine just started aching at 20 weeks.
I am 38 weeks and just last night i started getting lower back pain. We usually get them when baby dropping.
Im almost 35 weeks now and idk how I'd ever sleep without muscle relaxers, a heating pad, and an amazing husband that massages my back every night.
Mine started aching around 15 weeks. And i only THOUGHT it hurt then. At 28 weeks, i had to be given muscle relaxers my back pain was so awful. I couldn't eat, sleep, or even think straight it hurt so bad.