Hi ladies

So my last period started on Jan. 14th and lasted 6 days. It was oddly light but I dont think it was implantation bleeding because there were blood clots and it was bright to dark red. Anyway, I've been having symptoms of pregnancy that I've never had before in pregnancy scares. Like heightened sense of smell, headaches/migraines, etc. My period is due on Feb. 13th. And idk if I've ovulated yet. The last time my SO and I had sex was on the 23rd. If I havent ovulated yet, could the sperm still be alive in there? Idk what to think, what do you think? Also, what is the earliest I could take a test?