Anxiety!

So I am having major anxiety about this pregnancy! It has been a long road for us to get pregnant and we had two previous losses and now it seems we have a "normal" pregnancy (I'm only 5 weeks but my hcg levels are amazing according to my dr and progesterone levels as well.) I just can't stop thinking the worst even though this pregnancy I have no spotting which I had the whole time in the last two short pregnancies but I just can't seem to stop feeling so anxious and negative. I have my first ultrasound is 5/23 and I just am dreading it! Any suggestions how to deal with this?!?