So my 8th week ultrasound :-/

Holly • 1st was still birth at 37 weeks. 2nd was my rainbow baby. 3rd was miscarriage at 7.5 weeks!! #4 Another miscarriage!
So I am on my fourth child 1st being stillborn at 37 weeks, second my rainbow baby healthy now 3 yeArs old, 3rd miscarriage at 9 finally husband and I are pregnant again went to my 8th week appt and ultrasound found no embryo. Just a sac! Has this happened to anyone before Im so down right now!!