Telling my husband.

I took three pregnancy tests and all have been positive. I had a miscarriage on New Year's eve. So right now I'm pretty scared, I haven't told my husband because I want to go to the doctor and have her do a sonogram or something to confirm.  My husbands grandfather passed away on Friday and now it's even harder to tell him. But I have been so bloated and haven't been feeling that great. I think I should wait but how long should I wait?