Is this bad or not

Arielle • 20 yrs old married to my best friend who I known with for 6 years we had miscarriage in Jan 13 2016 now trying again (: we delivered our beautiful baby boy March 22 2017

Well I have 8 month old. Our first son and for some reason I wanting to get pregnant again. Does that make me bad mom that I just had baby 8 months ago and I want another one ( me and my husband) should we wait while. How far are your kids apart