Do they look darker

Me and my husband tried for a baby for year when we got pregnant in Dec of 2016 we lost the March 2017 at 7 week due to chromosome issue. We have been trying since April 2017 I am 14 or 15 dpo and I have got positive test but I’m am so worried ! I have sore breast and sickness but I have also had some like pink brownies spotting and mucous discharge how ever that has stop for the most part! I need y’all help do these test look like they are getting darker to y’all !