Post-partum bleeding continued beyond forty days

I am a young married woman and Allaah has blessed me with twin boys. I completed my [legislated] forty days post-birth (post partum) period on the seventh day of Ramadhaan, yet, my post partum bleeding continued beyond this time; However, the colour of my post partum blood had changed to how it was prior to the forty days (post-partum period), so what is the ruling regarding my [obligation to perform the] salaah and fasting?

Did not make up missed fasts before arrival of following Ramadhaan due to negligence

What is the ruling regarding the one who did not make up the missed fasts of Ramadhaan until the arrival of the following Ramadhaan, whilst he did not have a[n Islaamically valid] reason? Is it sufficient for him to repent [to Allaah] in addition to making up [the missed fasts] or is he [also] required to make an expiation (kaffaarah)?

Did not make up missed fasts before arrival of following Ramadhaan due to laziness

A 45 year old man has not fasted during the month of Ramahdaan for many years out of laziness and negligence, and nor has he made up any of the missed fasts over these years. However, Allaah (Subhaanahu wa Ta’aala) has [now] bestowed upon him the opportunity to repent and he has started fasting the month of Ramadhaan after the passing of ten days. So what is the ruling regarding the previous days, the months of which the number exceeds ten?