Can't stop feeling nervous!

Ever since we found out we were pregnant on January 25th Ive been so nervous. We had our first u/s at 6+4 and everything measured perfect but didn't get to see Heart beat. Of course drove me crazy until our 8 week u/s which was last Monday and everything was perfect and we heard a strong Heart beat at 166bpm. Now since we've been released from our fertility dr (at our 8 week appointment) to go back to my regular obgyn we have to wait until next Wednesday the 9th for our next appointment. Needless to say it's been a long week and we still have one more to go. I just wish I could be happy and enjoy it but my fear gets in the way.