Couples Counseling 😐

Kylie • Pregnant with a baby girl after 8 years TTC. 💕
My fiancé and I are going to our first couples counseling appt. tomorrow. I'm excited, nervous, anxious, scared, happy, sad...all the above. We have an amazing relationship but, are extremely faulty when it comes to handling arguments and tiffs. The smallest things will be drug out for days.. So petty and ridiculous.  Hopefully this helps us get back on the right track and be better than ever. 
What should I expect for our first hour session?