tums can interfere with contractions?

I’m 39 weeks and 5 days, and I’ve been taking ALOT of tums for my awful acid reflux. I recently looked up if it’s okay to take them while in labor because it’s just that bad, but I read that it can interfere with contractions. could that be why I’m not having any and have only been dilated 1 cm for the last 3 weeks? now I’m worried