Each Catholic Church has a tabernacle within it, protecting and guarding the Eucharistic presence of God.
In a similar way, the Blessed Mother was the first "tabernacle," holding within herself Jesus Christ.
This is why in some places a tradition was established of constructing tabernacles within statues of the Virgin Mary.
Keeping this same symbolism, St. Zelie Martin, the mother of St. Therese of Lisieux, wrote in a letter that every mother should be a "tabernacle" for the life they hold.
St. Zelie provides a beautiful reminder to all mothers that the life they bear is holy to God. It is why mothers should do all they can to protect the unborn human life they hold and to cherish the time of pregnancy.
Being pregnant is certainly not easy, but mothers can look to the Blessed Mother for inspiration and strength, recognizing the divine calling they have received to be a "tabernacle" of human life.