Ok so i am kind of new to all of this so bare with me

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I have a feeling i may be pregnant. Its been 2 weeks since me and my boyfriend had sex without a condom, and for the past week or so ive just not seemed to feel 'myself'.
I feel like i have to pee all the time.
and i feel sick quite alot, especially towards night time.
Now i keep thinking to myself its all physcological because surely after 2 weeks you cant be having symptoms, but im really not sure. Im not due on for another 10 days or so, but what got me thinking yesterday was that, a week or 2 before my period comes, i get quite a few spots, and here they came, started appearing again the weekend. Now would i still get these spots if i was pregnant ? Is it just a normal part of the process ?
Thanks in advance
x