Wtf is this?!?!

So I did nipple stimulation with a pump today, and I’m about to go on a walk. I did each for a 15 minute period within an hour and had what was either cramping or contractions. I’m a FTM and honestly can’t tell the difference. I’m 39 weeks and if she doesn’t come this week, I will be induced and I REALLY don’t want that! But it’s for her health, she can’t go over 40 weeks because of her size. I’m honestly getting so frustrated. And I know that contractions are supposed to hurt worse, but I was having regular contractions at the doctor’s office last week and barely noticed, it felt like a bad period cramp so I don’t know. My mom was the same way with her pregnancies and didn’t notice she was in labor with her first until her water broke, and even then she said the only thing that actually hurt to her was actually pushing out the baby. It’s driving me nuts though, I know I won’t be exactly like my mother, but I don’t know if I’m trying to time cramps or contractions because they feel the damn same!