Needed guidance

This is the first time trying to conceive, I’m just short of a month late taken multiple tests( 1 a week) but still negative. 2ws after my missed period I had some brown discharge for about 3 days then it went away. Today I’ve shown signs of spotting super light not enough to bleed through a liner.

I normally have a heavy flow and I’ve never missed a period. And my doctor honestly didn’t give me much info to work with just said “if you haven’t started your period in 3ms let’s me know or if your trying to conceive let me know after a month”

But I’m trying to have a positive attitude and hoping I am pregnant with just low hcg. Has this happened to anyone else? The bleeding is again super light I have no cramping. I have 2 different apps 1 if i ovulated “on time” and 1 if I ovulated late so I could be around 6-8w

Please any thoughts would be appreciated??