what are some effects of external pressure, like family or financial stress on relationships and how to deal with it as a couple

One word; communication.

Hopefully you have a partner to talk to. Isn't that the reason why you have a partner.

If Its taken as a dealing with partner along family then healing outcome will be, the way You deal it, but if both have feeling an attachment as a Family among the family... Then the pressure won't sound as a pressure.. Surely outcomes may reflect as treasure.. Hard times need to be tackle. .

First find a Compatible Mate and most things will work out for the better.
Compatibility means in every area of your life.

People say Opposites attract that maybe true but if they try living together or marriage it is a disaster. :)

Yep. And compromise.

yes ... communication and compromise is a must ....and both must be open .....

Hello, the wife must take into account the financial circumstances that the family is going through and not demand a lot of expensive and meaningless things from her husband and stand by his side to get rid of this difficult stage.

I completely agree with Mr Motown Downtown...

And would add that its easy for a discussion to escalate into a row if voices become raised, so both parties should remain calm and look for solutions rather than looking at the cause...

and compassion .. you both need to be empathetic and aware of how you react to stressors , what your strengths and limitations are .

Has been awhile Bonnie hope life is beautiful

If left unchecked, left to fester, things can become much worse and more difficult to resolve, if at all, and maybe the end of the relationship in divorce. Whatever the reason is creating the stress it must be faced as a couple, discussed openly together to agree the cause and what action both need to take. In very difficult situations for both, not to rule out seeking outside help, such as marriage guidance counselling, they should be able to help those suffering with the more serious issues in the marriage and where communication has broken down.

Stats in USA say that most men do not accept outside counseling. So that relationship is due to Fail.
Many relationships are based on Unrealistic expectations. Some take much work and marriage is not for everyone. IMO

Both must want to save their marriage in my opinion, and be willing to explore all ways of resolving issues that have arisen, if either or both of them are not prepared to do that, maybe it would result in an end to the relationship.