Had my period, normal everything (amount of days, flow ect), then 4 days later blood just started pouring out of my body (horror film style) and I kept losing these HUGE golf ball sized (doughnut shaped) blood clots. Like 20+ over a 24 hour period. Thought about going to the emergency room, but decided against it. Went to my Obgyn the following day, did a vaginal infrasound as well as a normal ultrasound, urine tests and blood tests. Found out I was either having a miscarriage or an ectopic pregnancy. I guess my *period* was a crazy version of implantation bleeding! They did some more blood tests a few days later and it turns out I'm still pregnant!! First ultrasound tomorrow (11 weeks). They have no idea why I was bleeding so much...and I was wondering if anyone else has experienced this??