Heartbeat still holding on to are rainbow 🌈

So i went in for the 2nd ultrasound. Because my first one we couldnt see anything but the sac. Im high-risk do to a clotting disorder and mutliple MC i have to be on blood thinner shots for tell im 13w. We finally got a heart beat im measuring 4 days behind what i though i was based on ovulation but my bean is growing strong. 94bpm at 5w6d measurements! First heartbeat we have ever got to hear.Were still crossing are fingers for are rainbow. Btw its the bean above the circle(yolk sac) look at the yolk sac i was orginally freaked out its so big but was told its normal. How exciting right.