I'd say def go and buy some FRER. Chemist warehouse sell a 7 pack for $26. Which is a lot but they are so much better than the Internet cheapies.
This morning I thought I had a shadow on IC BFN on FRER. Midday shadow on IC and faint possible Evap on FRER couldn't see colour.
Well I must def be someone who has stronger concentration of hcg in the afternoon because like a total looney I've just taken my last FRER and an IC and in the same day as a shadow and what looked like Evaps it has now come with faintest line on IC (complete squinter.....is it even there) and a super faint but pink line on the FRER (within 2 mins)
IC had a 'shadow' which made me test with FRER.
But I understand not wanting to test again and get your hopes dashed.
I def thought I was out this month and it could easily turn into another chem like last month. But for this moment in time I'm pregnant. What a roller coaster