Delaying the nikaah

Q: I am a 26 year old girl. I got a proposal last year and it's already been a year. He and his family are assuring us that once he gets a job and settles, then only will we proceed further. My parents are very worried about me. I dont want to be the reason of my parents sadness. Actually the main problem is that he is from South and I am from North. In South marriage, there willbe a grand show off and all that but currently he is jobless. My parents still agreed and are ready but he is stuck on one thing that he needs a job. We must just wait 8 more months. I just want a halal relationship. One more thing I would like to ask is that we did a register marriage in January 2017, just to avoid wrong deeds but now I am feeling that without Allah's blessing how can we be happy. So I am insisting to get marry according Islamic shariya but he says that he can't do it now and he needs time. Please suggest what to do because I am completely lost. I really dont know what to do. 

Taking birth control pills

Q: I am a first time mum and my baby is almost three months. I feel I might be pregnant due to not getting my menses on time. Is it permissible for me to take a pill? I feel my child is still too small and I don't want her right of being breastsfed not be fulfilled to her stipulated age. However, I just feel I could be pregnant. It is not for certain.

Using interest money for medical treatment and constructing toilets

Q:

1. Is it permissible to take money from an NGO or Charitable trust for medical treatment (Person who needs the money isn't capable enough to manage the expenditure)

2. Can we use interest money (Savings Bank account) for medical treatment of poor people.

3. Is it permissible to use money from interest received from a non Islamic bank for the purpose of construction of his/her own toilet.