Progressing labor

I’m currently 39 weeks+4. Went for a 2.5 mile walk with the hubby yesterday to help progress things. After the walk I felt great, no pain. Today I have felt a lot of painful pressure on my uterus especially if I just sit I can barely get up and walk, but if I’m up and active I’m fine. Baby has dropped a little more at this point. Do you think this could be early signs that baby is coming soon or am I just that out of shape? 😂