This may seem silly... But is it possible to "feel pregnant" just over a week after sexy time? I've…

This may seem silly... But is it possible to "feel pregnant" just over a week after sexy time? I've been sick a few times, I can't seem to smoke as much as normal and tonight I've noticed my nipples are a bit tender and itchy... I've also been very irritable 😂 I feel how I felt when I fell pregnant with my daughter but maybe I'm just being paranoid