I'm just shy of 7wks pregnant. My cycles can vary +/- a few days and when I first experienced spotting I thought I was around 6wks. Long story short, my OB had me come in for blood work and an ultra sound. My ultra sound showed I was likely a week earlier than I expected, we only saw a yolk sac and were concerned about a blighted ovum. After follow up blood work my beta hcgs were rising well and I was scheduled for a follow up u/s a week later, meanwhile continuing to spot throughout the week.
At this most recent u/s we saw baby and a heart beat of 116bpm. We also noticed a large clot in my uterus. Our u/s tech said she "didn't know what to make of the clot" and despite seeing a heartbeat said we still can't be confident that the pregnancy would stick. Our OB called later in the day to discuss things and sounded encouraged by our progress and said the clot wasn't necessarily a red flag and that it could dissolve or just kind of hang around.
Has anyone else experienced a blood clot in their uterus during pregnancy? Did your doctor seem concerned? Also, do the odds of viability not go way up once a heart beat is detected?