I am so sorry you are going through this difficult time. I am amazed they did a vaginal scan and declared you 3 - 4 weeks pregnant as at that stage the embryo would have barely implanted - perhaps what you are experiencing is an implantation bleed?

I know it is difficult but the best (only) thing to do right now is rest and try not to worry. At this early stage if the pregnancy is ending there is no way to save it so wait a few weeks and perhaps get some blood tests done to test your HCG levels?

I have been exactly where you are and know how heartbreaking it can be. Hugs to you

xx