Aqaaid

Subscribing to the beliefs of the Ahlus Sunnah wal Jamaa'h

Q: I have questions about marriage. My grandparnt use to be go to jumatkhana, they were ismaily. But the new generation nobody goes to jumatkhana. I have never been there. Everyone in my family belives in Allah and Quran and my belief is also very strictly on Allah and Quran. I don't like to go to jumatkhana. When I got married we didn't know that my husband and his family were going to jummatkhana but my nikaah was the Islamic way so I lilke to know is my nikkah haraam or halaal. I have a 7 year old son too. We got separated for some other reasons. 

Is the following statement sinful?

Q: My wife is pregnant Alhmadulillah. It's still the beginning of her pregnancy, but I try to buy the baby's things bit by bit to get good offers instead of buying everything last minute. My father told me not to buy so much yet and I answered something like "But at last minute one doesn't have all the money at one time". I know Rizq is from Allah and he could give me as much as he wants any time. What I meant is that I am planning on the grounds of what I have now (monthly). Is that statement and this approach sinful or even kufr? I regret saying it like that.

Laylat ul qadr and taqdeer

Q: What's the link between laylat ul qadr and our taqdeer? i.e.: on the one hand, the pen's ink is already dried, and on the other hand, laylat ul qadr means the night of destiny. So would that mean that each year when laylat ul qadr happens, Allah can change our taqdeer?

Family relations in Jannah

Q: Being a Muslim After the judgement day and completion of Jaza and Saza process.  Shall we get our relationship as Quran or hadith like, Mother Father, Sisters, Brothers, Children, Wife etc? Kindly give reference to study if possible from Quran or Hadith.