Irregular haidh

Q: I am a 30 year old woman. I never had a fixed cycle since I got baaligh. Sometimes I bleed after 35 days and next time after 2 months. Sometimes bleeding continues for 4 days and other times for 6 days. I never know when I will bleed. Bleeding always lasts between 3 to 10 days, means it is never less than 3 days and never more than 10 days. After it stops it never comes before 30 days.

My question is sometimes I noticed yellow discharge for once i.e, less than a 1 day time and again the yellow discharge is followed by white discharge. So what should I do? Should I take ghusl and offer my salah or wudhu is sufficient. I really don't know when the actual haidh (bleeding) is going to start. It may be 8 days later or so. The yellow discharge is not continuous. It is for a single time only. Again it is followed by white discharge. 

1. So what is my pure period?

2. If yellow discharge happens after 15 days of cleanliness (tuhr) and before actual bleeding and the yellow discharge is found only once or for less than a day time and again white discharged is followed then what should I do.

Can I make ghusl after I see white discharge and perform my salah. What if in case again after 3 to 5 days later I found yellow discharge for once and again followed by white discharge. What should I do in this situation? I always remain clean for more than 30 days.

3. I am planning an umrah trip. My problem is I don't know my actual date of my menstruation. So if it happens that if in the state of ihram if I found yellow discharge then what should I do. Can I make wudhu and perform umrah? I am really confused what should I do.

Will parents be sinful for not giving their children a proper upbringing?

Q: Someone told me that if parents don’t do proper upbringing of children they will be held accountable for it, but everyone is accountable for himself, how do I reconcile between that?

Also if parents are sinful if they don’t teach about a sin to a child and he does it, someone told me that parents won’t be sinful if they don’t directly guide the child to that particular sin, but they will be held accountable for not guiding them. Is it correct?

Calculating the 7th day after a child is born and keeping the name Muhammad Aadil

Q: Allah has blessed me with a baby boy. I want to keep his name Muhammad Aadil. Aadil is one of the siffaat of Nabi-e-Kareem Muhammad (sallallahu alaihi wasallam). Is it a good name?

My son is born on Monday afternoon at 3:30 pm. Now I want to calculate the 7th day. If I count Monday then 7th day will fall on Sunday. Is it right? Or I must start counting from Tuesday then 7th day will fall on coming Monday.