Has anyone else experienced this?

Up until this “event” I had no bleeding/spotting this pregnancy (my first pregnancy).

My DH and I had intercourse Tuesday night and I noticed pink/brown spotting but wasn’t too concerned since I’ve heard this is normal because the cervix is sensitive. I became concerned when I noticed brighter colored red blood when I wiped and a few brown clots on Thursday morning. I called OB and they got be in for an US that day. US was good, 6 wks 5 days with HR of 130bpm. They then did pelvic exam and doctor only saw brown blood and said he thought the bleeding was “from inside” and told me to avoid sex/strenuous activity, and called it a threatened miscarriage.

I noticed light bleeding (red) after appt on Thursday and some Friday morning and assumed it was from the pelvic exam and it stopped for awhile on Friday. Then on Friday around 3:30 I get a call from OB to come get a Rhogane shot d/t my blood type and recent bleeding. I got the shot around 8:00pm and went to use restroom before leaving hospital and saw period like blood and clotting and my heart sank. I talked to registration and they sent me back to talk to doctor. Doctor said I may not stop bleeding immediately and told me that if I bled heavily for 3-4 hours or got lightheaded to go to ER but otherwise to wait until my OB apt on Wednesday. She was not very reassuring, telling me there was a still a real possibility that I may lose this pregnancy and told me what to look for. So I have been bleeding with clotting form 8pm last night until now (9am Saturday morning) and don’t know what to do/think. I cry every time I talk about it. I don’t have any “sharp” pain and took a HPT this morning with a very strong line.

Thoughts? Experiences? Comforting words?

(Update: I had an US on the following Monday and baby was gone. :( We are heartbroken but do want to try again soon. This may be the hardest thing I have ever been through. )