these charts confuse me 🤷‍♀️🤷‍♀️

Roslyn • Currently mummy to 3 beautiful girls currently ttc rainbow baby 👶🏻🌈🌈🌈👶🏻 x after 9 months of ttc our rainbow 🌈 baby is cooking away nicely due April 9 th god is great ❤❤❤
Could anyone tell me if this is a bad sign that af is on her way so confused could someone explain this to me please thanks advice needed x