HPT progression

I am a first time mommy! I believe I am only 3+4 weeks pregnant and this is my first time being pregnant I’ve been taking home pregnancy tests and the lines are getting darker ❤️

BUT I tested my HCG from two different labs and one tested 49 and yesterday (2 days later) it was at 46 I’m going to my OBGYN again on Monday but she told me not worry because I am soooo early and numbers fluctuate this early I’m trying to just keep my faith and NOT be stressed because she told me to not stress at all I’m believing my OBGYN would tell me when I would need to worry but just wondering if anyone’s been through the same thing as me?