The most authentic opinion is that normal vaginal discharges are pure and do not affect wudhu.

In pregnancy women get no menstrual discharge but there is a white discharge often. It’s not blood but transparent discharge. Is it impurity to have on trousers? Can one offer salah after wudu or complete ghusl is required? Also tell is it necessary to wash trousers before salah?

Purity | September 22, 2017 6:09 am
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Shaikh Uthaymeen said that if a person prays with impure clothing and forgot to wash it then his prayer is valid. Where as i have learned that the person must repeat all the salah that the impurity was present at the time.
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During this summer i would get many wet dreams and i would just sleep the next day in my bed. My question is wheter this makes my clothes impure since I had slept were i had the wet dream, I had also made many prayers when i woke up from my bed. I thought that it is impossible to clean all this, so I decided to offer my prayers, Ive done this for well over a year.