Ttc advice pleAse

Hi guys! 
Iv been ttc for 14 months now :( 
I had sex Every other day last week which was my fertile time. 
I should be 7-8dpo ish now. 
I keep feeling a little sick,keep getting AF cramps,my tummy keeps feeling like a stretched kind of feeling (like a pulled muscle and I keep feeling "wet" down there also have an "upset tummy" 
Sorry for tmi.. 
I took a test today but it was negative.. 
Do you think these sound like Iv possibly conceived? 
Thanks for any advice X