I had unprotected sex five days ago during my fertile window. My doctor and <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> both told me I had a 9% chance I getting pregnant, during this fertile window, but you never know. I've been sick since. Upset stomach and nausea. Could I be pregnant or is it way too soon to tell? I had a feeling it could just be stress, but I'm paranoid.