What blood should I order?

Fertility testing is halted where I live due to Covid pressures. I'm going to order bloods online while waiting (you post them to the same clinic that does our hospital ones) but I need to request specifically what I want tested.

What should I get tested?

Issues are:

Over a year trying.

Cycle is suddenly irregular after being the same for the last 10 years, never been late until 6 months ago and now it's ranging from 21 days to 39 days.

Period used to be heavy for 5 days, now it's light for 2 days max, second day is more spotting than flow.

Used to have a lot of ewcm, now absolutely none.

No sex drive at all.

Weight gain and can't seem to lose anything despite clean eating and exercise.

Thank you