Bleeding.. could really use some prayers

Trish
Hey everyone. Today is a very hard day for me. Last Saturday, the 17th, a week after my missed period, I got 4 very positive pregnant tests. I am unsure of when I ovulated, but my LMP was Nov 14th, which would put me at 5w 3D. I went in for an ultrasound today and they did a pregnancy test prior, at first the tech thought it was negative because the line was so faint, but then could eventually see a faint line. Next, my ultrasound showed nothing. Not a yolk sac.. nothing. The US tech said that I could be earlier than I think so that could be why they aren't seeing anything and want me to repeat in 2 weeks. Then of course today of all days I have been having light bleeding... darker red.. but light. My heart just aches and I am so upset/ nervous. Wondering if anyone else has ever had an experience like this with heavier spotting in the beginning of their pregnancy? Praying for a good outcome.