Relationship venting!

So, I was supposed to have a checkup with my obgyn today. Hubby is off on Wednesdays, so he was coming along as well. He knows the area of my doctors office because he works in the same area! So, halfway there... he decides to put my doctors office in his gps... well he says oh, it's taking me a different way. Never been this way. Says it's 17 minutes away. I said that doesn't sound right. But, being 16 almost 17 weeks pregnant. I was like huh? Then when it takes us out if the way, he looks and realizes the GPS is taking us to a different location! I told him I knew it was wrong. Well, I called my doctors office to let them know what happened and they had to reschedule me!!! I'm all emotional and upset! My husband has the audacity to turn it around on me! Asks why I didn't check his phone if I knew it was wrong!? He's upset at me because I started to cry. Says I can't act like an adult. I know I'm far from perfect, but I hate how he gets in a heated situation with me! He's probably mad at himself for messing up... but why must he blame me!?! Now we're giving each other the silent treatment. I hate this!!! What do you guys think?