1 dpo anyone?! feeling like cramp :(

Katherine
So me and my fiance had dtd when I was in my fertile window up to my ovulation day which was yesterday.. I'm talking seven seas pre conception aswell! 
So last night I feel so crampy and gasy tmi.. but now this morning I have such a sore head and a weird feeling down there like a sicky feeling.. also feeling dizzy! Is this a sign? Has anyone been through this or going through it? Please get back to me x