Extracting a URL from email body

[padamus7]

I need to extract a specific link from a bunch of text.
Here is the e-mail I need to extract:

https://my.pitchbook.com/?asOfDate=2018-04-19&alert=true&pbr=16129717&tag=VIEW_ALL&tagPos=TOP>

Unfortunately, there is text before the link on the line, so the full line looks like this:

View all 2 updates https://my.pitchbook.com/?asOfDate=2018-04-19&alert=true&pbr=16129717&tag=VIEW_ALL&tagPos=TOP>

Here is the regex I came up with:

“^((?!view|all|2|updates).)(?=.?\bhttps\b)(?=.?\bview_all\b).*$”

but it doesn’t work. Anyone have any ideas?