Guilt after a loss

Br
Last September I gave birth to my twin daughters whom were born early at 21 weeks and only lived for one day. It was the most beautiful, sad and wonderful day of my life. My husband and I have 3 sons and these were to be the first girls to be born in our family in a long time. The first nieces and granddaughters so loosing them seemed extra hard on our families. My husband and I feel like now is the right time to try again and we are super excited and nervous about it. The problem is our families seem to still be grieving our daughters and are having a hard time excepting that we want to try again. We almost don't even want to tell them we are actually trying because when we bring it up lightly in conversation they always say things like you guys are done right? There is no way you can go through that again?! As if they are setting us up for another loss. I don't feel like they are intentionally being mean or anything they are just afraid and I'm not sure how to tell them that we are excited and want to try again. Has anyone else dealt with this and if so what did you do about family almost making you feel guilty about trying to conceive after a loss?