Get an ovulation test! They pick up pregnancy a HELL of a lot sooner than FRERS! (As long as you don't use it at the point of your cycle which you'd otherwise be ovulating)
This is how I accidentally discovered I was pregnant a day before my period was due! I'd used the wrong strip & when I realised, I was extremely confused as I knew it couldn't be saying I was ovulating as I'm like clockwork and my period was due next day. So I googled it & discovered that Ovulation tests are even more sensitive that FRERS! So I got a pregnancy test and it was like yours, yet the ovulation test was solid red!