Labor Help!

So I’ve had two c-sections so I’ve never experienced labor or contractions. With this pregnancy had been super different than my first two. I have been dealing with lightning crotch pain for about a month. But the last couple days I have been feeling cramping in my lower back and my lower abdomen. I have also started feeling like a dull achy pain in my pelvic region. Like it’s hard to explain but it kinda radiates into my thighs a little bit. Just don’t know if this a sign of going into labor or not..