Anxiety of Pregnancy After Miscarriage

I got my BFP a few days ago and have honestly been so nervous but yet so happy. I spent the whole day with mild lower abdominal cramps that occurred only on the left side and couldn’t stop thinking that something could be wrong. I had an miscarriage back in November at 6 weeks and the thought still hurts so bad. Has anyone dealt with this before? Did anyone have a miscarriage and go on to having an healthy pregnancy? How did you handle your thoughts?