Period a day late

Sooo my period was due yesterday; I’m never usually late, in any case I’m a day early or one day late but haven’t started today and I’m hoping it doesn’t start today. I’ve been really optimistic however, I’ve been taking Seven seas trying for a baby for about 2-3 weeks now and saw online that a few people’s periods came late after taking it. Feeling really demotivated and lost hope now.