y'all. LAWD LAWD LAWD.

I had unprotected sex at the end of January and just a few weeks ago on feb 22. As of recently like real recent like for the past week or 2 I've been nauseated (threw up a few times) and parched. Like I'm not drinking enough water.. even though that's all I drink and I've been sick for like 2 1/2 weeks. I've been craving fresh fruit and water. My back is aching, frequent bathroom trips (every hour or 2. No joke) yada yada yada.  This isn't normal. Idk what's going on though 🙄😑 what do y'all ladies think? I had my period but it ended 2 days early... could I possibly be pregnant? What were some of y'alls symptoms when you were pregnant? I'm new to this so idk. HELP!