I need a rant/ some advice

Me and my partner have been TTC for 4 years, we've been together for 7 years.

I fell so easily with my daughter.

And with my partner it feels its never going to happen.

I'm now 4 weeks late which hasn't happened for apart from when I was pregnant with my daughter 7 years ago.

I was taking a test every week from being a week late all came back negative until 6 weeks.

I took a test at 3 weeks (this period) and it's negative, do you think there's still a chance this might be pregnancy or could there be another reason? My periods regular..

When do you think would be best to consult with a doctor and discuss things.

Can you offer any advice, or your stories to try and make me feel better that one day this is going to happen.