@mami_5815, def sounds like contractions. Try timing those for about an hour. BH usually goes away after you change positions and actual contractions normally hurts your lower back and have period (or worse) cramps

@effortlessfly, I'm laying on my left side hoping they go away but they're not....and they're hurting my back

I thought was having a bad night (2am) and I gave birth at 1:35pm that day. Be on the look out for signs of labor.