I have bled though both my pregnancies and currently pregnant with dc3 and am 14 weeks.
Both pg were different, never had any pain but bled throughout first pg in small amounts but for weeks on end. Then it would stop and then start again. Had numerous scans for reassurance and luckily all was fine. DS1 is now 4 and fine. But boy did I worry non stop during that pregnancy so I know how you feel...it is impossible not to be all consumed by it...
Pregnancy number two ...at 12 weeks I passed a blood clot the size of my hand. obviously thought I had mc but went to hospital - scan and internal and all was fine. it was a miracle! ds2 arrived early (only 3 weeks) but fit and well, just small. I did bleed throughout this pg too but didn't worry as much as positive outcome with ds1
However, my maternal cousin also bleeds throughout, for her this has resulted in 3 mc and one still born at 20 weeks. Ironically her ds1 was born the day after my ds2.
In summary this pregnancy I am more worried than ever before and I have had no bleeding yet! My cousins experience has really hit home to me how lucky I am to have ds1 and 2 despite all the bleeding. I am just waiting for it all to start again with this one....
The only advice I can offer is to remain as calm as possible and to try to distract yourself as much as possible from everything. Be insistent on a scan to re-assure you. This is important for your health and sanity.
I wish you all the luck in the world x