I've been having "waves" of burning pain in my lower belly lately. The first time it happened, it was pretty intense & happened twice. I've been getting it a couple times a day now, & sometimes it'll be only on one side or the other. This is my 3rd baby & I'm almost 31 weeks. Does this sound like contractions or something else? This is not at all what my contractions felt like with my other two but I'm so confused as to what's going on. I'm gonna ask my midwife about it at my appt next week, but wanted some input if anyone has been through something similar. Thanks!