Is it to early to try again?

Kenna’s Mommy👼🏻

Our sweet baby Kenna Marie Craig was born sleeping Feb 8 2019, at 19 weeks in utero she was diagnosed with Trisomy 18, which is basically terminal, some babies live but she did not. It’s currently been 3 and a half weeks and I so desperately want to have another baby. I’m 41 and my husband is 49. How long after a birth were you able to get pregnant again?