Girls, I don't understand what's happening to me. The doctor asked me …

Girls, I don't understand what's happening to me. The doctor asked me this question, she didn't say anything really, I have pain in my stomach all night like during my period, not very strong but so sensitive, for three nights in a row now, it happens sometimes during the day, but rarely, and tonight I woke up, I had cramps three times and there was backache at the level of the coccyx, like on both sides and where the bladder is at the level with it ((I'm thinking maybe not contractions, are they training? Not too early for me ? the worst thing is that the doctor didn't say anything really, she just changed the topic and everything ?