Pregnant or just stressed?

So on the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> app I am now a week late and on the Clue app I am about 4 days late. I really want to take a test already by my fiancé insists I just wait and take it tomorrow. I have been pretty stressed the last week so maybe that's why? I keep thinking I've started but it's just discharge. And twice I've seen a thick white discharge in my underwear. Ugh I'm so impatient! Im probably going to buy a test tonight and then take it first thing in the morning tomorrow. And to top it off tomorrow is my 23rd birthday! I'm so torn because my heart truly wants to have another baby(I have a 6 and a half year old daughter) but the other part of me knows that financially and space wise it would be so difficult.