There is an ad on TV at the moment concerning the results of pregnancy and the 'leaking' and it is very sad that no one is told about this.
I used panty liners for years, then in 2015 I was diagnosed with polymyalgia rheumatica and was put on Prednisolone, a reducing dose over two years. Half way through the leaking stopped and - touch wood - so far it has not returned.
Now I know doctors have to be cautious about steroids and only prescribe them for certain conditions (they are not the same steroids for body building) and they do tend to add weight, but surely mothers should not have to spend all that money on briefs when they could be getting better help. It should not be regarded as inevitable.