diff --git a/README.md b/README.md
index aa924fd..c21b8fa 100755
--- a/README.md
+++ b/README.md
@@ -35,9 +35,10 @@ You can use `make:livewire` to create a new component. For example.
 php artisan make:livewire AppointmentsCalendar
 ```
 
-In the `AppointmentsCalendar` class, instead of extending from the base `Component` Livewire class,
-extend from `LivewireCalendar`. Also, remove the `render` method.
-You'll have a class similar to this snippet.
+- In the `AppointmentsCalendar` class, instead of extending from the base `Component` Livewire class,
+extend from `LivewireCalendar`. 
+- **Remove the `render` method or you will override the parent and the calendar will not display.**
+- You'll have a class similar to this snippet.
 
 ``` php
 class AppointmentsCalendar extends LivewireCalendar
@@ -119,8 +120,6 @@ Example
 
 This will render a calendar grid.
 
-![example](https://github.com/omnia-digital/livewire-calendar/raw/master/example.png)
-
 By default, the component will render the current month. If you want to change the
 starting month, you can set the `year` and `month` props.
 
diff --git a/src/LivewireCalendar.php b/src/LivewireCalendar.php
index 672af25..1204a8d 100755
--- a/src/LivewireCalendar.php
+++ b/src/LivewireCalendar.php
@@ -175,8 +175,8 @@ public function monthGrid()
         $firstDayOfGrid = $this->gridStartsAt;
         $lastDayOfGrid = $this->gridEndsAt;
 
-        $numbersOfWeeks = $lastDayOfGrid->diffInWeeks($firstDayOfGrid) + 1;
-        $days = $lastDayOfGrid->diffInDays($firstDayOfGrid) + 1;
+        $numbersOfWeeks = floor(abs($lastDayOfGrid->diffInWeeks($firstDayOfGrid)) + 1);
+        $days = floor(abs($lastDayOfGrid->diffInDays($firstDayOfGrid)) + 1);
 
         if ($days % 7 != 0) {
             throw new Exception("Livewire Calendar not correctly configured. Check initial inputs.");