As per your chart, there is no delay indicated with respect to having children. The upcoming time in future starting in 2024 is conducive for the same.
Further analysis can be taken up with the chart of the prospective chart of the partner. You may like to take professional medical advice as well if required.
A proper and well advised food course for keeping the body cool and maintain hormonal balance plays an important role.
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Karka Lagna with the Lagna lord Moon posited in the sixth house and Venus conjunct Sun posited in the Lagna; Fifth lord Mars posited in the third house and Jupiter posited in the fifth house; Jupiter Antar Dasha starts in 2024 and Jupiter also transits to Vrishabha in 2024 giving aspect to the fifth house.