Symptoms of an ectopic pregnancy at 4 weeks mild stitch like pains on left side pink blood?

At 4 weeks, symptoms of an ectopic pregnancy can include mild stitch-like pains on one side of the abdomen, often accompanied by light spotting or pink blood. These symptoms occur as the fertilized egg implants outside the uterus, commonly in a fallopian tube. It's essential to seek medical attention if you experience these symptoms, as an ectopic pregnancy can lead to serious complications if not treated promptly.