Rainbow baby

I found out two days ago im pregnant with our rainbow baby, i lost our daughter in november at 31 weeks to thanataphoric dysplasia. Its been 8 months and now im super excited to be pregnant with our rainbow baby. My furst ultrasound is at the end of thr month and i feel like i should test every day to make sure its still there. Hubby said baby #3 will be fine. But im worried. Any other mammas carying their rainbow?