Yesterday I took about 4 different tests(1st response pink and clear blue digital) that turned out Positive. The line was incredibly clear. According to the Nuture app I am about 4weeks and 1 day along. Today I've been cramping all day. I feel it mainly on my lower left side in the front. I'm not sure if it's constipation or gas related or if this could be a chemical. It hurts worse for a second when I stand up or try to use the restroom or even depending what side I lay on.I've had no bleeding. I'm just concerned as i've read how common chemical pregnancies are. *This is my first pregnancy