Damn, is it real contractions or not? I don't understand. Yesterday at…

Damn, is it real contractions or not? I don't understand. Yesterday at around 9 pm, something started pulling my belly like during periods, today in the morning too, sometimes. The doctor looked at me from the chair and said that the cervix is preparing but still long. But the contraction sensations continue sometimes. Nothing showed up on the ultrasound, they said they will do another one later. And yes, there's a bloody plug coming out, the doctor said that remnants have come out during the examination and maybe I'll give birth today, but it's not sure ?. So I'm thinking about waiting for a miracle or not).