This can be a big problem. One option is Humanitarian Reinstatement ... if it is a family case. Not possible with an employment-based case.

My h4 is not approved although primary H1B is approved. Can I expedite this or any other options ?

Although you can request an expedite ... it will probably be denied.

Will this situation Impact my citizenship?

Do you have any proof that the airlines canceled your flight back to the US? You mention a previous trip(s) ... was that 5-1/2 months TOTAL, or...

Talk to an attorney. The Child Status Protection Act (CSPA) 'might' apply.

I'll be 'direct' ... this won't work. Yes, on OPT you can be self-employed ... but NOT on OPT/STEM. For H-1B it will be close to...

I-485 form mistake?

This can be fixed at the interview. Don't stress.

Let's start with you telling us whether you have proof from the Post Office/FedEx/UPS that the package arrived .... AND whether or not your check...

What Are My Options?

We need much, much more information. Starting with how you entered the US.

Do I have rights in United States if I’m divorced while i485 is pending ?

You need to talk to an immigration attorney. If he has been psychologically, or physically, abusive ... you might qualify for VAWA.

I agree with my colleagues, you appear to be in 'pending/semi-lawful' status. But, the more important question is why are asking this? Are...