Novena for the Nativity of Our Lady starts on August 31

                             http://catholicism.about.com/b/2013/09/08/the-virgin-marys-birthday.htm
Just a week remains to wish our Mother, "Happy Birthday". Mary, our Mother is "Cause of our Joy" 

SEPTEMBER 8th The Nativity of our Most Holy Lady,Mother of God, and Ever-Virgin Mary. 

Troparion, tone 4: Thy birth, O Mother of God, has brought joy to all the world; for from thee arose the Sun of Righteousness, Christ our God, Who, having dissolved the curse, has given His blessing, and having abolished death, has granted us life eternal.

Kontakion, tone 4: Joakim and Anna were freed from the reproach of childlessness and Adam and Eve from the corruption of death, O Immaculate One, by thy holy nativity. And thy people, redeemed from the guilt of sin, celebrate thy birth by crying to thee: The barren woman gives birth to the Mother of God and the nurse of our life.
http://www.liturgies.net/Prayers/Orthodox/tropariaandkontakiafeastdays.htm

                    http://www.passionistnuns.org/Saints/BirthBVM/index.htm
 from The Divine Office – Matins (Morning Prayer)

Thy birth, O Virgin Mother of God,
heralded joy to all the world.
For from thou hast risen the Sun of justice,
Christ our God.
Destroying the curse, He gave blessing;
and damning death, He bestowed on us
life everlasting.
Blessed art thou among women
and blessed is the fruit of thy womb.
For from thou hast risen the Sun of justice,
Christ our God.

Novena for the Nativity of Our Lady
The following Novena is prayed from August 31 through September 8, the feast of the Nativity of the Blessed Virgin Mary. This Novena was approved well before Vatican II: Nihil Obstat: Iacobus P. King, I.C.D. Censor Deputatus. Imprimatur: Bryan Iosephus McEntegart, D.D., LL.D. Episcopus Bruklyniensis http://www.dailycatholic.org/sepdevo.htm#nativitybvm1

Day One: August 31

V. O God, come to my assistance
R. O Lord, make haste to help me Gloria Patri... Heavenly Child, lovable Mary, the Eternal Father delights in thy birth, for He beholds in thy coming into this world one of His creatures who is so perfect that she will become the worthy Mother of His divine Son. May thy birth give joy to my soul also, by obtaining for me from the heavenly Father, the pardon of my sins, and an abiding sorrow for them.
Hail Mary... Antiphon: Your Nativity, O Virgin Mother of God, was the herald of joy to the whole world; since from thine arose the Sun of Justice, Christ our God, who, destroying the curse, bestowed the blessing, and confounding death, rewarded us with life everlasting.V. Let us celebrate with joy the birth of the Blessed Virgin Mary.
R. That she may intercede for us with Our Lord Jesus Christ.

Let us pray Grant to us Thy servants, we beseech Thee, O Lord, the gift of Thy heavenly grace, that as our salvation was begun in the child-bearing of the Blessed Virgin, so from this solemn festival of her Nativity may we obtain an increase of peace. Through Our Lord Jesus Christ. Amen.