TTC for 8 months now


So for the past year (since getting married) I’ve tracked my period on this app, it’s been spot on! My period is NEVER late... it was supposed to start yesterday and it hasn’t. Yesterday I did have very little brown spotting.. my periods usually start right on the day Glow says it’s going to and it’s always extremely heavy! My husband and I have been trying for a baby for about 8 months now... My boobs have been super sore, I’m fatigued and super moody (all period symptoms as well) are these all just period things or can they be pregnancy symptoms?