Vaginal bleeding heavier than spotting, especially with clots or tissue
Cramping or abdominal pain that is stronger than usual menstrual cramps
Passing grayish or pink tissue from the vagina
A sudden decrease in pregnancy symptoms such as breast tenderness or nausea
Lower back pain along with bleeding or cramping
A positive pregnancy test followed by a negative test later
No fetal heartbeat seen on ultrasound when one is expected
Pregnancy symptoms stopping abruptly
Feeling faint, dizzy, or weak with bleeding
Severe one-sided pain or shoulder pain, which may also indicate ectopic pregnancy
Fever, chills, or foul-smelling discharge, which may suggest infection
Contact a healthcare professional promptly for confirmation and urgent evaluation