Confused- as usual

So glow predicts period tomorrow, Friday! Which would be a 28 days cycle. Last month cycle was 22 days so that's weird.. And I haven't had any "period symptoms" I've had sore breast, constipation (kinda normal for me), and hiccups. But also started realizing today dishcharge that's got the texture and color of what we would normally call ovulation signs... Sooo I'm confused?