Should I move out of my place or move back in with my parents?..

Thank you for stopping by!

I am currently 7 months pregnant with a little girl and have a 5 y.o. son. both by same guy who left me a few months ago. My parents helped me and him get this 4 bed 3 bath house that we paid 1500 hundred for. The douche bag has 2 other kids by 2 other women that i helped raise for the past 6 yrs. My parents of course are okay with whatever I do. But dont get me wrong I love having my own place but when i go back into that house I bust into tears to just think it housed 5 and now 2 soon to be 3 with the baby. its not far its about 20 min but I guess when i get to thinking and missing the old days then it really gets to me. My biggest fear is fally into post partum depression and being depressed before delivering. I guess im really looking for advice on wether or not to stay with my parents until i can get my own place or if i should stay in my place.??...My parents having been helping pay the rent and i can cover the rest and I thought i can sublease it or let some family stay there until the lease is up in march. With my son being here he is also distra ted and doesnt talk or ask about his dad as much as before. So it saves me a little hurt from that stand point to.....Its just alot to deal with pregnant.

*My parents helped me and him rent out this place. And because the lease is under their names i dont want to break the lease and mess up their credit. I got 5 months left until the lease is up. Thinking about letting a family memeber stay there so that the house isnt abandoned until the lease the lease is up in march*