Can you have pregnancy a week after your period ends?

Hey gals!

*my husband and I use protection; we are not trying to have kids*

Im just now going into my ovulation window. I felt ill at work 4 days after my period. I went home and slept all day then I felt better. Had no problems yesterday just had a headache and super tired. Today I felt way better no headache or fatigue. But we tried a new pizza place and the taste/smell of something on it set me off and I

didn’t want to finish the pizza. My friend joked with me, “maybe your pregnant”.

My question is, does this sound like pregnancy and if so, is it possible to have pregnancy symptoms less than a week after your period? Lastly, I read you can have similar symptoms when you’re ovulating (like heightened sense of smell, etc) could that be it? Let me know!

Btw: I did take a pregnancy test and it came up negative