Home About Us the Rabbis Contact Us

what's new on Revach
Parshas Tzav: Rabbeinu Bachaye - Covering the Shame of Sinners

Parshas Pinchas: Rav Yehonoson Eibshitz - Where did Zimri the Great Tzaddik go Wrong?

Showering the Night Before a Taanis

Ha Lachma Anya: Rav Eliyahu Dessler - Celebrating Freedom With Poor Bread

Rav Yaakov Edelstein - The Two Words He Wanted to Be Able to Speak
[view all questions in this category]

Section: Questions   Category: Halacha
Halacha - Using Sun/Lunar computer generated predictions
Submitted by anonymous  Answered by Rav Peretz Moncharsh

Generally speaking it is forbidden to rely on any means of divining and controlling the future by supernatural means; Astrology would certainly qualify. While pru u'revu is a very important mitzvah, the ends do NOT justify the means. Additionally, I am very skeptical about the reliability of a method that predicts the sex of a fetus based on the birthdays of the parents.

However I did find a many websites that can calculate the days most likely to conceive a boy based on the based on a certain degree of medical theory regarding the proximity to ovulation. While their method is by no means fool-proof, it at most increases the odds of having a boy and that by a modest percent, if your brother is willing to give it a try there would be no issues in Halacha.

posted:2009-07-20 14:25:08

printable version     email to a friend

Send Your Comments
Name optional
Display my name?
Yes   No
EMAIL optional
Your email address is kept private.
COMMENTS required
    Most Viewed Lists
  1. "Zissen" Pesach
  2. Toivel Hot water Urn
  3. Bracha for bANANAS
  4. sprinkler on Shabbos clock
  5. shaving body
    Last Viewed
  1. Using Sun/Lunar computer generated predictions
  2. Spiritual Character during the Year
  3. mehudar esrog
  4. hatmana
  5. Lying