My period date was 15th of jan I had unsafe sex on 13 jan. Am getting nausea feeling what ever I eat. Does it mean that am pregnant

Any time you have sex, protected or unprotected, you run the risk of pregnancy. At this point it is too early to test.

Are you trying to get pregnant?

I don't want to get pregnant. Am scared if I get pregnant. But the nausea feeling is it too early? Or because am thinking am getting this feeling?

I don't want to get pregnant. Actually am scared. Is it because am thinking am getting this nausea feeling?
Any time you have sex, protected or unprotected, you run the risk of pregnancy. At this point it is too early to test.

Are you trying to get pregnant?

Yes, nausea is a sign of pregnancy. I think it's too early, but different people have different reactions.

That's the danger, of course, with sex - particularly unprotected.