If you got your period, it is unlikely that you are pregnant
No, if you are having a monthly period you are probably not pregnant.
It is probably just the symptoms you get before a period. If your period doesn't come, take a test
If you are on your period and it lasts for the normal amount of days and with the normal flow that you usually have, you are more than likely not pregnant. You do not have a period while you are pregnant. Spot bleeding may occur during pregnancy but it is usually not a flow like a normal period and will not occur at the same time and last the same amount of days as a normal period.
No
it means your pregnant
probably, because if you think about you would get paranoid and start thinking that you are or you would just feel like you are. some people do feel like that but as soon a they start thinkin like that they end up being pregnant or starting their period
Yes, you could be fertile 2 days after your period. However, if you had protected sex, the chances of you getting pregnant are low
Probably not.
If you had protected sex, then you probably won't be pregnant. The time you had sex was most likely your fertile time. But the protection will be you best bet against an unwanted pregnancy. Hope this helps!
Get tested. I believe it is possible, so just get tested.
I'm not sure what you mean by " half way protected" but going by your wording your there is a 50% shot that you will and it don't matter if your on your period or expecting it ...
Being paranoid or worried does not delay your period although in some cases stress does. If you are that worried about being pregnant you can go buy a pregnancy test and test yourself for pregnancy. Best thing is just not worry and hope for the best really ;P