first of all, you wouldn't have morning sickness the morning right after having sex..it takes a while before you get the morning sickness symptoms..second, if you did have unprotected sex then there is always a chance you could become pregnant..the fact that you had sex right before that some say would increase that chance because of the precum, and since you did JUST have sex right before that there still could have been some ejaculate left over, unless he got up to pee or something....always have a condom ready! unprotected sex is very risky..have you considered birth control?

You are not paranoid, you are concerned and you should be.

Although it is highly unlikely you became pregnant it is not impossible. And what happens if next time he withdraws too late? We guys are not all that responsible.

Like the previous poster said, birth control will greatly reduce your chances of beoming pregnant.