As per your chart, there could be a minor delay in your having a third child. The chart analysis of the both the parents provides better insights. The time starting in mid 2024 onwards is a good time for you to conceive your child.
It is advisable to take proper care of yourselves and go for periodic medical advice as there could be some kind of weakness which could act as an obstacle. You should try and avoid spicy food and all the heat causing food items, which may cause some delays.
It is advisable for you to have regular light exercises along with disciplined time table of daily routine to build good inner strength.
Libra ascendant with the ascendant lord Venus posited in the seventh house in conjunction with an exalted Sun and Mercury; Fifth lord Retrograde Saturn and retrograde Mars posited in the ascendant.
South Node (Ketu) major period ongoing with Jupiter sub period starting in 2024 followed by Saturn sub period.