Input please! 💕

Kaylee • Mommy to my angel 👼 Due 5/17/19 Lost 10/24/18 waiting for our 🌈🌈

So AF was supposed to start Wednesday 5/1/19 and didnt now here it is the 4th and I woke up to some light bleeding and super light cramping not like my normal period cramps and my period is normally really heavy the first day... today would be 24 days into my cycle, do you think it's most likely implant bleeding or AF?

Thank you!