Pregnancy pains or something else?

Hello everyone im wonder how many for you ladies have had pain very down low and around your underwear line, hips, lower back? I’m 20 weeks been in pain have been told it’s normal pain. I get very bad cramps I go to the bathroom thinking oh no I’m bleeding but it’s just some of the mucus plug

Talk to my doctor and she’s sending to labor and delivery. It sound like something normal though?