Ok hi first of all thanks for reading this

i had sex without protection on september 29 and I don't know if I am pregnant I began feeling nausea and peeing frequently I also take a 4 hour naps sometimes which I never I mean never sleep in the day unless I am sick and I have been eating a lot lately and people even ask me if I am pregnant and I haven't been able to go to the doctor or go get a pregnancy test but all these symptoms keep happening and if I get stressed about something I get worse symptoms the weird thing is that I don't know if I am on my period or if I am bleeding because on october 18 I began bleeding and my periods usually last 6 days and today is the 20th of october and the bleeding is stopping so I actually don't know if I am pregnant can anybody please help me and give some advice????