Babies feeling lower

Elizabeth • Mommy of one beautiful girl, and twin boys (:
My boys feel lower than they have been. I have been having braxton hicks, but not as frequent as they were. I was told if I have two in an hour, to go to labor and delivery. I have like three a day. But yesterday, I had just used the restroom at the store, walk out, and I felt a swift kick and felt like a peed a little. I have had a bit of increase in cm for the past week and a half. The past couple days, one of the boys feels just a bit lower than normal, they have been, what feels like, sucker punches to my cervix lol. Also it just kinda feels like pinchibg occasionally. I don't remember my first pregnancy all that much. And he has kicked, but he mainly moves at night when I'm sleeping. So I don't know if he is fully active. But movements have calmed down with him. He doesn't kick as hard as the other one. Now the other one has been extremely active. I have a doctors appointment on the 31st. I'm just curious if this is normal and I can wait till the 31st to discuss this with my doctor, or if I should make a trip to labor and delivery? I don't feel like anything is wrong, but it's all so new to me. And I'm constantly worrying about going into preterm labor.