This post is in loving memory of the Lubavitcher Rebbe of blessed and saintly memory, whose 15th yahrtzeit is today, 3 Tammuz.
Disclaimer: This post does not refer to those very special physicians - may G-d bless them - who observe The Almighty's commandments and refuse to perform abortions.
The Talmud in tractate Yevamos (pg. 63b) says, "[Moshiach] Ben David won't arrive until all the souls are depleted from the body."
Rashi, our 11th Century sage from Ashkenaz (Germany-France) and the most important Talmudic commentator of all times, explains this very cryptic passage. "Body," says Rashi, "is the name of a partition that separates the Schina (Divine presence) from the angels, which serves as the warehouse for all the souls that were created during the six days of creation, and that are destined to be given to bodies that will subsequently be created."
The above Talmudic passage teaches us that all the souls must assume bodily forms on earth before Moshiach can come. Even though unborn babies all possess divine souls (neshoma, since the unborn learn the entire Torah - oral, written, and esoteric - from an angel while in the mother's womb), the entire spiritual/soul complex that includes nefesh, ruach, and neshoma [basic vitality, spirit, and divine soul] all come together in the body momentarily before the baby is born (for further reference see Talmud in tractate Nida, pg. 30b; Tanya, first chapter; Eleph Hamagen, commentary on Mateh Efraim, intro. to laws of Rosh Hashonna; Sha'ar Hagilgulim, Seder knisas haneshoma). So, when for some reason the baby is not born, then the soul cannot leave "Body" (or 'Guf' in the original Hebrew), the heavenly warehouse for unborn souls. Until Guf is empty, Moshiach is delayed in arriving.
In light of the above Talmudic teachings, any person who performs, supports, assists, or encourages abortions is delaying the arrival of Moshiach with his or her own two hands.
I often wondered why the Talmud is so severe in its condemnation of doctors, when it says (tractate Kiddushin 82a), "the best of doctors are destined to Gehennom (purgatory)." When considering that in Israel alone, doctors perform over 20,000 abortions a year, then it's easy to understand why Moshiach is not yet being allowed to reveal himself. No, one does not receive a prize for contributing to the delay of Moshiach. Our sages in their infinite wisdom could see far into the future; that's why they said what they did about doctors.
So, if you'd like to lend a helping hand in bringing Moshiach as fast as possible, do what you can to fight against abortion in every way possible. I pray for your health, but if you ever need a doctor, I strongly suggest that you choose a physician who's opposed to abortion. A good physician recognizes the sanctity of human life.