Cramping? Normal?

Sometimes I feel cramping. It doesn't last very long and it only occurs maybe if I've been sitting or laying too long and then stand up or if I bend over. I'm guessing it's normal because I'm not having any spotting, it doesn't hurt but does feel a little like period cramps but it only lasts for maybe 6 seconds at the most, itll only happen once and then maybe a few hours later happen again.