I'm 1 week late postpartum (6 mos)

Meridith • 🕊 due 9.11.15 | 🧢 3 yrs. | 👑 1.5 yr | 🤰🏽due 1.27.19
My last two cycles were 28 days apart ... Now I'm late 6 days late... After taking test and waiting a few...how likely this is true?!!