When to go in to doctor/ER

So I've been to the ER twice in the last 6 weeks due to contractions. Every time they have been 10 minutes apart or closer and they have mildly hurt (high pain tolerance). The last time I was a bit over 1cm dilated and 60% effaced, which was only a tad bit more than the first visit. They advised me not to come in unless contractions are incredibly strong, my water breaks, I have blood, or I'm experiencing symptoms of preeclampsia. My contractions are definitely stronger but in the last 5 hours haven't gotten much closer together (3-5 minutes apart) and they have woken me up. When should I make the call to actually go in?? It's 2am right now, we are home with our 4yo daughter, and I'm still wide awake. To go or not to go?