Im 4 weeks 6 days pregnant with 3rd child and noticed my cervix is low firm and closed should i be worried im still waiting for first antenatal app?

Cervical position: The cervical position is not something you need to be checking. It is important during the end of the third trimester and when you are in labor. Other than that it is not relevant. Even though you are only 22 since you have been pregnant 3 times it is not surprising that already have a mild degree of uterine prolapse. This is not an issue that will affect pregnancy but may later in life.