Second miscarriage in 3 months ???

I am so heartbroken. I went in for an ultrasound on Thursday with the expectation of seeing a heartbeat, but was told the baby had stopped growing instead. I was supposed to be 7 weeks but was only measuring 5.5 weeks. We did IVF so we know exactly how far I should have been. This was my second IVF embryo transfer and also my second miscarriage. I can’t believe I’m going through this again. I want and miss my babies so badly. I’m scheduled tomorrow for a D&C and I’m just not emotionally ready for it. I miscarried naturally last time so didn’t need a D&C and I’m so scared. I don’t know what to expect and I just don’t how to deal with this. Sorry for the long rant, I’m just trying to figure out how to handle this heartbreak.