How did you handle this....

I had a miscarriage back in October and am now 5.5 weeks pregnant. for those of you who have had a miscarriage and then became pregnant again, how did you not stress about every little thing your body was doing? Everytime I go to the bathroom it's like I'm examining to make sure there is no blood and the pinching feeling I get in my lower stomach makes me have anxiety that I'm having cramps like before. I've had my levels drawn and am scheduled for an u/s next Friday but that feels like an eternity. I just want to make sure I can enjoy this pregnancy and not fear for the worst.