For the past 4 or 5 nights I've been getting strong, regular contractions. They start out about 20 minutes apart at 5:00 and by 1:00 they're 5 minutes apart and more intense. I keep thinking this must be it, but then everything stops around 3:30! I have contractions during the day too, but they're definitely BH. The ones at night feel more real (not that I really know what real contractions feel like, but these ones start in my low back and spread over the front and reach a peak and everything).
Is it normal for this to just be happening at night? Is there any way to know if I'll go into real labor soon or will this just continue for the next 3-6 weeks?