Painful cramps like during PMS. They occur most often at night. For a…

Painful cramps like during PMS. They occur most often at night. For a week already. A week ago I had an ultrasound, no problems, contractions and so on. I can't contact her online for an appointment on Wednesday. She advised me to use Ibuprofen candles when I have pain. That's what I'm thinking about now, should I use them or not, is it normal and just like "cramp pains" from the uterus growing and the baby? Has anyone experienced this?