Father John Meyendorff's book called "Marriage: An Orthodox Perspective," was outstanding imho. I love the late Father Meyendorff (Memory Eternal). He was my priest's Father Confessor at St. Vladimir's back in the early 1980's. He inspired him a great deal. Father Meyendorff's books are what opened the Orthodox Church to me. He's amazing. He was best friends with Father Schmemmann, who was also my priest's seminary professor (imagine having Father Alexander as your professor!!!!).
In this book, Father Meyendorff talks about practicality, having enough money to properly raise a child and care for him/her, having enough and what you can take care of varies from family to family. Money and careers vary, mitigating factors like employment or depression or lack of childcare or education and so many other things play into it. Where you live also factors in. He goes on and on about common sense, but trying to be open to life, and that is something one figures out with a spiritual father. He basically says contraception is a factor and he writes from a well-grounded perspective.
I came from the Catholic Church where Vatican Roulette and having 12 kids when you can only afford to house, care for, watch, and raise 3 was normal. No thanks. Natural Family Planning was a nightmare for us, and the issue of how many kids to have, sex, all that stuff, is not best-discussed in a forum. I wouldn't say that it is to the level of evolution in TAW (Lord, have mercy!) or politics, but it is an issue that won't be properly dealt-with here ever.
To the OP, I know it's the ultimate TAW cliche of all time, but I must rap this to you yet again----"yo, yo, yo, talk to your priest, dawg."
This is between husband, wife, priest, not the conservatives and libs at TAW.
I highly recommend reading Father Meyendorff's book. Here's the link.
https://smile.amazon.com/s?url=search-alias=aps&field-keywords=john+meyendorff+family