Went to bed last night with light cramping and some pink spotting woke up this morning to red…

Went to bed last night with light cramping and some pink spotting woke up this morning to red spotting. I went to the ER due to the fact that my ob is worried about blighted ovum cause I went in to see her at what was supposed to be 6 weeks 1 day and they could see no fetal pole and no yolk sac...today I have a yolk sac but no fetal pole...super worried I might miscarry my rainbow baby....although Doc says things are progressing nicely I’m still super worried due to the cramping and bleeding. I can’t wait for next Thursday when they do another ultrasound and hopefully see my lil pnut!