Well, truth is always sounds like crap 
These days every married couple first think about good food, shelter, high wages etc and later on decide to having kids. But pplz r neglecting one important thing that Allah SWT! had taken responsibility for every single living thing on this earth, to feed, raise etc.
let say a married couple planned not to have kid(s) for certain period untill they will achieve a resonable position. Couples completed their studies, Got their own home, good reasonable wages with secure job etc.
What if after the birth of child(s) these all achievements are just vanished, what if its all goes opposite and they have to live in poverty? They already hav kid(s) so whom the couple will gonna curse? How thy will raise, feed, take responsiblites of their kidz including themselve?
In relations, some pplz get preganent in first try and some after lots of try. This is b’coz when Allah SWT! put the life in the sprums then the infant will take first breath in the womb of mother and it could b one, twin or more, by Grace of Allah SWT.
Married couples should thanks to Allah SWT! and always seek beterness b’coz whatever happen in this world is by His will.
Myths 
ask those couples who wasted huge amount like a rain on medicines/medical treatment wishing to get preganent once. Our respected elders have seen more springs season of lifes and whatever they say in this regards is the experience of their life not an air-tales. like some1 said Old is Gold.
name_105! well i’m not predictive and what i said earlier, that actual happened so thats why i shared otherwise this is not a fun thread/discussion where i came to hav fun, it is serious matter.
We have one more family they belongs from Balochistan. The couples of this family had 13 kidz, two of them died in infant age. Ony 1 bread-winning person raised all 11 kidz. They all completed their studies and some of them working with a reasonable wages. One thing here i would like to share with u which make me laugh. The husband wants to marry another women to have more kidz 
The wife as she told us she had her 1st child when she was 18 yrs old.
weird advice. So far only few pplz enlighten with valuable commets. As per men’s giving advice, i think they loves their wives and don’t wanna se others pplz frustrate their wives by alto falto bukbuk like 'lagta hy larki mein koi kami hay, lagta hay varasti bemari hay, lagta hay ke banj hay etc etc. Pressuring go for second marriage as the first wife can’t get preganent.
Example: couples married since 26 yrs ago.
P.S. Pardon my poor english and no offensive to any1.