Is it too early to take a test. My ex bf and I had unprotected sex about 5 days ago. He didn't pull out and I have been pregnant with him before due to circumstances I lost the baby. However I'm now nauseous at even the smell of tea and I feel tired, my body temperature is going crazy and I have really bad cramps. I'm not sure if it's too early for a test but I am already a day late. My beasts feel fine but I am sore and aching everything else, my head feels like it's going to explode and my back shoulders and neck hurt. I feel exhausted and I slept for 10 hours! 

My first pregnancy was no picnic, I got very ill and dehydrated but is it too early to tell if this is a pregnancy or just really c**p flu? 

Any advice?