So frustrated right now!

I'm only 5 weeks along my first pregnancy and feeling great- just extra emotional and tired. My husband and I just found out last week after trying for a few months. He's not understanding why I don't want to hang out with all of our friends right now- I'm not quite ready to tell anyone and am a horrible liar! Our friends notice when people aren't drinking, and I've obviously quit smoking as well! Too many factors for them to figure it out just yet. Am I being crazy? He thinks I'm being dramatic and went to hang out with our friends anyway. Just feeling nervous that he won't be as supportive as I'm gonna need him to be, especially during this early time until we know baby is healthy!