Scared of positive test resulting in chemical pregnancy:(

I’m so excited about getting a positive test, I had a feeling anyway that I would get a positive test, due to getting signs of implantation etc. But because I’ve tested 3 days before my period I’m so so scared that ill get disappointed yet again and it will turn into a negative :( I’m getting niggly, pulling feelings down below and I’m hoping that’s my body getting ready for this big change! Does anyone else feel this way?:( I want a healthy baby so so bad