Ahrefs does a full update every 60 days but they refresh their database every 20 minutes I think. So, I wouldn't worry about finding your links 2 days after you posted them - it's likely going to take longer than that. Ahrefs and Majestic have different databases and that's why you are seeing the different results...completely normal.

Try backlink watch and you will get to see most of your backlinks for free, anyhow you will get links from ahrefs very soon

It needs time to update backlinks, you can wait from 1 or 2 week for updating process .

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There is no need worry about your backlinks because you ain't ranking.

That same time could as well be used to build more links..

It's not a nice approach to assume that all backlink checker will give you the same result or links you just posted 2days should show up.

As a matter of fact, a good number of your backlinks will never be seen...

You can try another tools, to check your backlinks. you can check for google, MSN or Yahoo ...
These are the great tools ...
LinkPopularity.com: The Free Link Popularity Service
Backlinks Checker Tool - Backlink Watch

Remember ... when you comment via blog .. don't forget to use "anchor text"
Hope this will help you.
Andra

You can check your backlinks in WebMeUp backlink tool - WebMeUp backlink tool - link checker with fastest growing index.

The index continues to find and store new and backlinks on a daily basis, which makes it the freshest index of live backlinks.

The backlink tool is completely free at the moment - the first 1,000 backlinks can be checked immediately online, and the rest is downloadable in Excel.

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