This usually manifests as blood in the urine, and is one for the G.P.
In addition, I would see the homeopath for a constitutional remedy.
Stimulation can be taken to the kidneys by reflexology, and once they are on the way to
recovery, this would probably help them to throw out any residual toxins.
Kidney infection is often associated with an STD, so it would be worth checking this out,
and checking your spouse also.
There may also be some toxic metal such as lead or cadmium that is blocking kidney function.
If we see high levels of either of these on the hair analysis we correct this in advance of the pregnancy.
Some hair dyes in current use are said to adversely affect kidney function and this should be much more looked into.
1,600 hairdressers are said to die of bladder cancer every year. This could be relevant.
Do not use hair dyes before or during pregnancy.
I would also investigate the electromagnetic element, particularly if it recurs.
Any organs can be weakened by bombardment with electro-smog.