I am due to miss my period tomorrow (2/16) and I tested positive last Thursday (2/10). The top test was taken Friday morning and the bottom test I just took this morning. I’m not scheduled for my first appointment until March 11th. Should I be concerned that my lines are not getting darker? My first pregnancy ended in a miscarriage and it took fertility meds for me to fall pregnant with my second. This is my third and I have a very nervous feeling. We have wanted to expand our family and have been trying for over a year.