Thank you! I did go back today (Friday) and got a positive there, and and FRER at home where the test line matched the control. He took bloods and still wants to test HCG in case it was a false line...haha. Should find out what the level was next week some time.
The most annoying part was explaining my long cycle (it started on the 2nd October), I told him I ovulated around the 5th of November but he doesn't believe I could possibly know that and is saying I am 7 weeks and not 4.