Before having a child - 5th house - a woman first has to get pregnant. This very often is the more difficult part - as not every pregnancy result into delivering a child to birth - 9th months time for events- between.
That 5th house ruler in WH opposite Saturn makes me nervous.
https://ibb.co/nspJ4Zt
According to placidus house system - you may be right with this. Conceiving a child and to get pregnant - 4th house - female receptive principle - in this chart is in male sign aries- with moon/mars corresponding energy. Mars ruling 4th house is in scorpio in a venus ruled 10th house.
Saturn in 4th house rules 2nd house- physical body house and physical constitution. And saturn as a tenant is in landlord's mars owned house and opposes and kinda fights against own landlord mars. Mars squares neptune in physical body house 2nd- self-protection and safety.
I would assume this saturn in 4th house is very mature and "feels" very responsible and first needs well, secure and safe circumstances to conceive - especially financially. Saturn squares neptune in 2nd house - self-protection and saftey first and semisextiles jupiter as ruler of ASC and first house - personal enforcement to get own wishes fullfilled.
Having children- of your own - or adopted -5th house - male principle is in taurus - ruled by venus. Venus is in 2nd house, ruled by saturn and under saturn direction and is on special sensitive and also critical degree of 0°pisces - between 2 energies - aquarius and pisces- like sitting between two chairs, 2 worlds and 2 opportunities- hesitating- scared to choose one of 2 and to lose the other opportunity - with a tendency to hesitate too long.
Venus semisextiles neptune in 2nd house -one of the fate called planet energies - often acting beyond personal control and venus trines mars in a venus ruled 10th house. And for getting pregnant and having children - saturn has a strong influence and word to talk- it's rules have to be respected - first.
To get pregnant - ruler of 4th house first has to be transit activated by a slow moving transit planet and ruler of 5th house - too.
And actually is a very good transit-supported chance for it - as transit jupiter has already activated natal venus in a very special spark energy way - having entered 0°pisces in may and still holds on conj. natal venus and trining mars as 4th house ruler and pregnancy - until end of december/beg. Jan 2022. While transit jupiter still sextile-encourages natal saturn.
And transit saturn - being in 2nd house - still sextiles natal sag pluto in 12th house - the big ocean where all souls come from and go back into- after own life ended.