How to know when to ease up during pregnancy?

I had twins at 31 weeks gestation 3 years ago and now I am 25w4d pregnant and getting Braxton Hicks and always scared. But I have twins and I’m running around after them, cleaning my house daily, and cooking daily and I’m wondering how I can be sure when it’s time for me to stop doing all of that and ease up a bit. Is the Braxton Hicks a sign to cool it?