Late period!

Gwen • Had my sweet rainbow baby girl on April 3, 2017! 👶🏻🚼🍼 So incredibly blessed. ❤️
I was for sure my period was going to be here by now but nothing! I'm 3 days late today and have had slight cramping for the last couple days. Almost feels like AF is going to make her appearance but hasn't yet. I took a pregnancy test this morning and it was negative. I should add in that it's only been a month since I've been off of birth control. Could it be my body trying to get used to not being on it anymore? I've never had a late period, but I guess anything is possible. Wish me luck!