When to try again?

Ashlee • My baby girl was born October 23. Oh my, I️m so in love. 💕

So I really thought that I only wanted 1 kid. But now that she is 3 months I think that she needs a sibling. I am in the military and moving every 3 years as a kid is going to be hard so i feel like if she has a sibling it won’t be as hard on her. I was thinking about trying again when she is 6 months but any moms have advise on when is a good time frame? It took me 14 months to get pregnant the first time.