guessing time frame

Z

So Idk if I'm due August 2018 just guessing based on the faint positive I got. I can't go based on period because I breast feed my current daughter and I haven't had a period since last November. from what I was told and researched I may have gotten pregnant on my postpartum ovulation? any who I'll find out for sure in 2 weeks in the ultrasound but thought I'd be part of the August group ☺. I'm praying everything goes good. I've had a miscarriage 2 yrs ago so this is still scary