It is very hard having an infant and being pregnant again. I did it with my first two. They at just under a year apart. But I wouldn't change it for the world.
Just and rest as much as possible and don't stress if you don't get all your chores done, they don't go anywhere.
Goodluck mommy!
Im in the same boat. I have a girl: 6yrs a boy: 1yr old and I am due in October. Im just gonna take it day by day and try to give them all indevidual attention or they will act out (eventually) for ur effection.
You just have to try and nap when they do and learn to let the small things go. I know it can be hard, my two boys were born 9.5 months apart. I found out I was pregnant at 6 week checkup!