Scared of chemical pregnancy

My period was suppose to star today. It's irregular and doesn't come the same time every month. I took a red dye pregnancy test and I got an instant positive. I had a miscarriage in January and had 2 chemical pregnancies after that. I am scared this maybe another as well. I am nasaues, face breaking out, and having turd lik bowels, feel like Af is coming..any thoughts...trying not to get hopes up