I would bring it up with your doctor.
Mine did this passed Wednesday I was 35wks but two days away from 36wks, I don't know when the next time will be actually.
Mine normally does it around 36 weeks; once I start seeing him weekly.
Mine is starting at 35 weeks if they didn't bring it up I would ask
Im 37 weeks & I never got checked every time I go too my appointments it's the same thing check the baby's heart rate my & blood pressure & my weight,The doctor said nothing going too change. :(
I don't remember mine starting that until 36 weeks. If I had any type of discharge that I was u sure of I would ask my doctor to check.
My doctor is going to start checking me at 34 weeks cause im high risk. But I would say around 36 weeks. But doctors are different.