When did YOU KNOW???

Whitney

So me and my bf are trying to conceive. We did the deed New Year’s <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> started my period on the 3rd only lasted 4 days I’m usually a 5/6 sometimes 7 day period girl blood was brighter. Then once off my period we started having sex quite a bit. According to this app we had sex two days before fertile days day before most fertile day and the day after. I don’t know if I’m having symptoms already or if it’s in my head. Back pain/ extremely hungry/ nauseous/ fluttery cramp like feelings. A) could those days have gotten me pregnant B) would I be showing symptoms already? Thanks for your advice/ experiences