11dpo headaches?

Caitlin
I'm 11dpo, started with mild nausea yesterday afternoon. This morning I woke up with an awful headache. Pms? Or...? I'm thinking my period is due Sunday ish. I won't test until sometime next week. Or once I'm "late". I do get hormonal headaches, but typically the day I start, not days before. Any one have any insight? Or can commiserate? Lol