You say you've been riding since April 12th?- and this is now 10 days and about 80 miles later?
It's completely unrealistic to expect any results yet.
Put on several hundred hundred miles and then you might notice something.

You may well, like me and others here, stay the same weight but wind up being shaped very differently....a shape you like! You might want to look at biking as a way to get fit instead of just for losing weight.