I'm Having Some Unusual Feelings Around My Uterus Lately. I've

I'm having some unusual feelings around my uterus lately. I've had two kids, and it feels more like the beginning of movements, rather than the normal muscle spasms. My periods been regular, and I've taken a couple of tests that have come back negative. I can't make an appointment with a Dr because I have no health insurance, and can't afford the bills. Any a dive would be helpful. Thank you!