Do you think its Gods /Allahs plan?

OK, looking for advice... Not a telling off....

My OH is Muslim and I'm Christian. No, we are not married yet, a Nikah is on the cards eventually but a church wedding is way too far off into the distance due to costs etc.

Due to our age (very late 30's and early 40's) we have broken the rules and been TTC as time is running out as we've only been together 2 years, so we are late starters at having a family. However, nothing has happened for us over the last 7 months and we are beginning to wonder if its gods / Allahs plan as we aren't married. My OH is very strict with his religion, except over this issue and does his daily prayers.

What do you ladies think? Are we being silly? I'd like to have a Nikah asap but the OH is dragging his feet over a proposal.... (I think its due to wanting to buy a nice ring but I've told him I'd be happy with just the question and nothing). Thanks x