who has felt like they were pregnant almost a week after conception?

Sounds crazy! However my SO and I have been kicking the idea of having a baby around. Decided if it happens it happens. We aren't doing anything to prevent it at all. 
Due to my miscarriage last year and his past we aren't sure that I can even get pregnant easily. However, almost a week after deciding this and being intimate everyday of my ovulation period I am starting to feel the same feelings I was during the early stages of my short pregnancy last year. I was just curious as to how many mothers out there knew they were pregnant almost immediately by reading your body and it's changes.