johno I'd guess at around cd17 too... although this was my first month of bbt so I'm no expert!
mishy no, that was 11pm last night so they're obviously very sensitive to it! Might be better testing using them than actual pg tests and then testing if they come up that dark! I definitely don't think you're out yet either. I had a link somewhere to a thing about implantation dates and anything between 6 and 11 days I think it was and then it takes a few days after that for hcg to build up enough to test so you've got a few days left yet!
bobo I've had cramps since Monday too. Also a bit sicky but it's not nausea like feeling sick in my stomach it's more like when you've got indigestion and feel it more in your throat. Like a little sicky burp (gross huh) haha, I thought it's very early for that too but maybe it's because I have been a pig 😂. Also my boobs feel kind of hard if that makes sense?! Not sore or anything just a lot firmer than usual, no idea if that's normal lol.