Closed cervix (38 weeks and 5 days)

Any advice/tips para mag open cervix? I'm currently taking a primrose na pampalambot daw ng cervix, and worried ang midwife ko na baka umabot ako sa due date ko and still closed cervix parin. I'm thinking na mag ride ng bike kaso inaalala ko naman if safe naman kaya sya for my baby? #advicepls