5DPO symptoms?

Katy

I'm currently 5DPO (that's if I actually ovulated). Have had non stop headache since Friday night and since yesterday I have been nauseous on and off for two days. Boobs get weird twinges every now and then. Lower stomach felt super tight this afternoon. Do these symptoms mean anything? Can't test until this weekend. Back ground I stopped the pill in August and didn't get my period back until Christmas and it was ten days long.