My ds was super low. He was very tucked in. And then he dropped. So many people were astonished at how i carried him. I also had long periods of bh contractions starting around 33 weeks. Like 5 times a day i would have contractions for an hour. They were never regular (1.5 min in between, then 45 sec, then 2.5 min...) and never got stronger. They also weren't dilating. He went til 40w5d when i was induced for low fluids.
So I wouldn't worry yet. Certainly if you have more signs of early labor then worry, but I wouldnt worry about the what ifs yet.