Ugh, I feel the exact same way. I'm actually getting off right now to brew some tea and go read in my nice, cozy bed because my head hurts so bad! Mine might actually be a sinus headache, and AF was due for me yesterday, so who knows?!?!?!
Those are preg. symptoms, and even those early pregnancy tests won't work for you right now. They work about 14 dpo. So retest next week! AND YOU HAVE TO LET US KNOW WHAT IT SAYS!
I am in Australia at the start of summer.
I'm also 6dpo! Headaches and dull cramps everyday for over a week I thought was a bit strange and I never get sinus.
I'm having basically the same my headache I think maybe sinus as it just got cold in the south today after wearing shorts yesterday kinda weather. I'm 6dpo how many are you?