I need a little help

So I had sex the 18th ovulated on the 20th. Now today I have sore boobs and nipples horrible cramps, backaches(lower) pain and pressure in my lower abdomen. Bloating, fatique severely fatiqued very dizzy and at times I feel like I'm on the verge of puking. Please help me. I know it's to early to test but what are my chances this is an actual pregnacy. Rarely ever do I have period symptoms b4 my period.