Bleeding

Emily
Hi moms and dads. My fiancé and I found out we are expecting our first a week ago. I've had intermittent spotting for about 2 weeks and Friday night I had a rush of blood with clotting. Went to the er and they did an inter vaginal ultrasound, blood tests, pelvic exam etc. dr said that the sac looks okay and my blood panel was normal. Have other moms experienced this? I am hoping it was just my body getting rid of old stuff that little pea doesn't need. Spotting stopped for 2 days but now is back. Should I be worried?