Hey Hun,
Here's some test info-
Apparently, if a woman is pregnant, the amount of hCG in her system should be around 25 mIU at 10 dpo (days past ovulation), 50 mIU at 12 dpo, 100 mIU at around two weeks dpo.
On average a woman's HCG levels double every 30 hours. Non-pregnant women have HCG levels of 5.
-First response early tests (up to 6 days before AF) 12.5 mIU
-Boots own pregnancy tests 25 mIU
-Clearblue 25 mIU
-Hospital non-branded HCG tests 100 mIU
Maybe try with FMU tomorrow, if you can wait lol!
xx