if you have unprotected sex and actually get pregnant, do you start to feel any different or signs that make you feel different right away?

You may feel tired and a little off after 3 or 4 weeks but most symptoms don't start until 4 to 6 weeks pregnant.

When I got pregnant, I knew right away. (Within a day or two after sex). I felt really weird! There's no other way to describe it and there was no doubt in my mind that I was pregnant.

I took a pregnancy test the next month and it turned out positive!

Everybody is different, as for me I didn't start to feel pregnant until going into my 2nd trimester! Then I got morning sickness, tired, and fatigued it's best to just wait and see a doctor, or a pregnancy test.

I felt extremely tired around a week before my missed period, that was the main symptom for the first few weeks.

very rare to feel something immediate. The earliest is usually around the time expecting the period