13 weeks and worried...

Crystal
I worry about everything let me just say that. Lol I'm 13 weeks now and I just don't "feel" pregnant anymore not feel nauseated or near as tired as I did a couple weeks ago. Is this normal? I have an appointment on July 9 and we are supposed to hear the heartbeat 😄 
It's our first and I just want to make sure all is well...I read to many neg stories 😔 and I truly feel for the girls having to go through these things it just worries me I wanna make sure my little man or little lady is ok :)