Yoga For IVF etc From Saravali as Given in Jatak Saradeep.
सौरर्क्षे सौरगणो बुध दृष्टश्चेज्यकुजार्किदृग्घीनः ।
क्षेत्रजपुत्रं जनयति बौधोऽपिगणे रविजदृष्टः ।।9।।
The sign of Saturn in the 5th or 5th lord in the divisions (Vargas) of Saturn and the 5th or the lord, is aspected by the neuter planet Mercury, further, there may be no aspects of Jupiter, Mars, or Saturn on it.
Or there be a sign of mercury in the 5th or 5th lord be in the Varga of mercury in both these conditions the 5th or the 5th lord is aspected by Saturn then also the wife of the native may conceive from the sperm of some other man it may be due to adultery or in modern parlance, it can be the test tube baby or IVF.