How long to wait until blood test?

Hi ladies! I’m currently 7 days late, with negative tests, and starting to approach morning sickness! I’m convinced I’m pregnant honestly, I just got off the liletta iud on the 6th of April and we’ve been TTC every single day since then lol my question is, how long did it take for you mamas to get a positive on your blood test? And is a quantative or qualitative blood test better?