Complex and Compound-Complex Sentences

You don't have to put a comma after a dependent clause if it begins a sentence.

The dog cried when its owner left, and it sat by the door until she arrived home.

Compound-Complex Sentences contain at least 2 independent clauses and 1 dependent clause.

Because I was hungry, I ate a whole pizza, and I got a stomach ache.

Since I love the warm weather, this fall has been fantastic, but I'm ready for cooler weather.

Since I started reading Harry Potter, I've been reading it everyday, and I can't stop.

Which one is compound-complex?

After I'm done mowing the lawn, I will clean my car.

Because my dogs are so sweet, it is hard to leave them alone; I wish I had more time with them.

Although I was tired, I couldn't fall asleep.

Today was the best day in the whole world my family began our beach vacation.

Even though I was tired, I stayed up late reading; my book is riveting.