Yes highly possible..at that time before your period your body was preparing ovulation and it most available to become pregnant. Even when you are on your period your apt to get pregnant by like triply. But you wont know till 2-6 weeks after or if you have skipped your monthly.
No, yer good. In fact, you have like 10 bays before and after. Another thing, pulling out is as effective as condoms (look it up). Triply is the capital of Libya, so I don't know what sommer is talking about.
I do believe in the middle of period you won't get pregnant. But I think when you start and end your period you can get pregnant. Because in the middle of your period your egg is out and by the end a new egg tool it's place.