I'm confused by these tests!!

Hi, I would really appreciate some help! TTC my 2nd baby. Have a 4 yr old which I didn't have to try for conceived 2 wks before my wedding this time round I've been off the pill 7 months.. I had a positive Clearblue ovulation test on Monday 8th August, me & my husband got straight on it, had lots of sex for 48 hours.. I first took a test this Wednesday & have done another yesterday & one today, all First Response.. I think there are 2 lines, the instructions say the 2nd line can be fainter but if there's a line it's positive.. I did a Clearblue digital yesterday with my first wee of the day.. Came back Not Pregnant!! So now I'm totally confused & obviously quite upset. Has anyone else had a First Response test that looks like this & they've been pregnant? Or am I reading them wrong & they're negative?! Any input will be gratefully received 😘