Maternal lead exposure can cause spontaneous abortion*. A dead-leg was found to the west of Miles Rd near leach highway in Western Australia. Dead-legs have been known to contain lead levels 3000 times allowable limits. Lead test kits are available if you are concerned about your water supply or bottled water source. Reverse Osmosis filters are believed to be one of the most effective filters in order to remove lead.
* = Cited reference(s) are contained within the following journal article. https://academic.oup.com/humrep/article/21/7/1901/2938487/Maternal-lead-exposure-and-the-secondary-sex-ratio.