At the moments its very tough to get in adsense its better to apply with a very good quality site which site are u using to apply
No sure whether your blog still under review or it was rejected. If it is under review, wait In case your blog get rejects, go through adsense programs policy to ensure you fulfill the requirement and not against any TOS, then only re-submit
Adsense are a bit wary when it comes to bloggers. It's mostly because there are millions of spam blogs on the internet. Apart from that there is no assurance that the blog is there to stay. If you are a blogger then you need to have a well established blog. Otherwise it's highly improbable that you will be accepted in the Adsense program. It can take around two weeks for Adsense to scrutinize your information.