Could I be pregnant???

Vi

I need some help ladies. Oct. 9th I had a period. I ended on the 18th. So Nov. rolls around and no af. I'm feeling nauseous here and there, tired and every now and then light headed. Nov. 27th I started lightly bleeding 28th lightly bleeding but the hubby and I did the deed. I stopped shortly after. Dec. 2 I started again light bleeding alittle reddish then I ended that night. Does anyone know what's going on????