pregnant again?!

Brittany • I`m a 25 year old mommy of 3. Just found out my 4th blessing is on his or her way. ❤
Guys, I had my son July 13th. And I took 2 test, both were positive but I have no idea when my last period was Bc I'm still breastfeeding. I'm happy but scared! This will be my 4th.