Second time moms- baby dropping

Amanda • Tucker 3.9.16 (csection) Emersyn 2.6.19 (repeat csection)

Just curious if the statement is true that you drop right before labor with your second? Because I am only 27 weeks 2 days and my girl dropped. We are at risk for premature labor. TMI- I have had increased BMs. Not incredibly weird but I’ve been constipated on and off this pregnancy. I have had increased BH the last few days but other than that I feel fine? These pics are 2 days apart.