Missed period.

So, as of today I'm 1 day late on af. Been ttc for over a year. I'm a mother to my miracle babygirl. An I have PCOS so if you have it you know how hard it is to know when your ovulating, so here goes to ALOT of testing. I really want another baby I don't know what I'm doing wrong or if it's me 😔😔.!! I honestly wanna give up. Looking a negitive test all the time (even going to the Ben to make sure.) Is very depressing. I've went to the extent of testing his sperm am I going baby crazy.?? I guess I'm asking has anyone got negative pregnancy test after missed period?. Or end up getting af just late.?