39 weeks tomorrow, this past Wednesday had dr appt 0 dilation feeling cramps and pulsating in my vagina

My mom is a night nurse not answering her phone at work, my MiL said since I wasn’t dilated on Wednesday and today is Saturday evening I’m probably still not dilated and just body getting ready. Feels like period cramps and pulsating in vagina. 🤷🏻‍♀️