Pregnant or no?

So my husband and I tried on like the very lady of my period where I was barely even spotting, which was on the 30th of September. Today at work I started getting pain or soreness on my left pelvic area and even at 11pm tonight I still feel it. And now I am feeling a little nauseous, and I felt nauseous like that once or twice in the middle of the night last week. Could I be pregnant??? 🤗🤗 lol or maybe just over thinking it. And I was so tired at work today and just wanted to sleep and immediately took a nap as soon as I got home.