Is it hard to crochet a lovey?

Wrapped in love baby blanket. Almost done just need to figure out a good border. I’m planning to use a purple which I’ll add a picture to see and figure out what kind of border to do. 

Wrapped in love baby blanket. One side is straight the other side is not. Am I doing it right? 

I am still a beginner. I am working on the wrapped in love baby blanket using Caron big cakes yarn weight size 4. I made my foundation chain 148 which reached 40” but now that I’ve finished row 4 and I measured it the length went to 47”. Can I just leave it or should I start over. What do you suggest Tiffany?