I’m confused....

So first off let me give you a little back story so this all makes sense and you have all the details you should need to give me advice. I have been ttc again since June after a miscarriage. Well in October my period was 14 late then showed up heavy and fierce. Then last month my period was 4 days late conflicting tests. Neg, Pos, Neg again then showed but was unusually light and more of a spotting than period for 2-3 days. Well didn’t test last month because of starting. Well now today 8 days before Aunt Flo showed I ate pizza for dinner and the was getting ready for bed around 12am and my stomach felt like I needed to go #2 but then instead I go to use the bathroom and end up having this heart burn build up and then horrible vomiting, I have never had any acid reflux or heartburn in my life. At first I thought the pizza I ate gave me food poisoning but after that I haven’t had to vomit or anything now I just feel a little light cramping. Is it possible I actually was pregnant last month and am actually around 8 wks. I mean I have noticed other things but kept shaking them off because I am too early to having symptoms if I just got pregnant this cycle and not my last. Suggestions. Thoughts 💭? I do plan on testing tomorrow just to see so I don’t need that just wanna know if anyone has experienced this or what? Thanks everyone in advance 💕💕💕