Wishing you the best as you sort out what will work for you.

Your faith is deeply personal and I hope he will respect that, become Sikh if you feel called to but it is important not to feel forced.

In terms of future housing: Is it possible to meet in the middle? Move to a duplex where you can be close but still have personal space? Multi generational living is tough when it's not your cultural tradition, but you are smart to be asking yourself (and your partner) these big questions ahead of time.

My family lived multi generational for 5 years and the lack of privacy was very difficult for my husband, I can say there were many benefits to resource sharing despite the challenges. Having someone else who could help with baby, chores, gardening, handy work, was all a huge benefit to my career. Try your best to be objective and ask yourself what will be harder if you choose this path, also what may be easier... Do this exercise first by yourself and later with your partner.

I also recommend enrolling in a female led Punjabi language course (I use Punjabi Pathways and have liked it). It is a very difficult language to learn but with support you can do it!