Possible miscarriage please don’t look if squeamish

Hi sorry for this post but I am a bit desperate. I am 5 weeks 4 days pregnant after an ectopic pregnancy and 4 miscarriages. I have had light bleeding from Friday to Sunday and a scan today where a sac was detected but they said too early to see if there was a viable pregnancy there and I was asked to go back Friday. Then later in the day this happened it looks more like a brown jelly mucus with small thin wires in it. Has any one had any experience with this? I am worried it might be the sac. Thank you in advance

Hayley