How do contractions feel?

35+2 FTM. I went to the bathroom thinking I had to poop with the slightest cramps. I felt like I had gotten all I could out but I was still cramping afterwards. I went to labor and delivery this past weekend and they told me I was having contractions every 5-6 minutes apart. As I was watching my monitor, I realized every time I had a contraction it felt like the top of my belly would tighten then it would loosen up again. Tonight however the cramping feels like my period is about to start and they aren’t subtle at all. They are probably a 3/4 maybe even a 5 on a pain scale. I’m a little nervous because today was my first time drinking raspberry leaf tea and my baby is still breech which I had my first visit with a Webster certified chiropractor today.

Could this be the start of labor? How did contractions feel when you went into labor?