When Mars is place in fifth house of horoscope, specially not favourable for children. The fifth house of horoscope is specially considered for children and education. If any malefic planet conjunct fifth house, the person may face difficulties in education or children. some time if Mars is aggressive in fifth house may delay in child or may give death after birth of child, but its only in the very bad condition of fifth house and its lord. In female horoscope, the Mars in fifth house may give miscarriages during pregnancy. If first child is male, there would be danger on his life. But it happens in only very bad condition of other planets also. If there is the effects of beneficial planets , the bad effects of Mars will be minimised.
All results of Moon are written on the basis of Vedic Astrology and Shastras. Results may change according to different lagnas of horoscope.
Astrologer Sunil Kumar