I started my period last night (Friday) around 7p. Surprisingly, my cramps were tolerable (with my pain medication) and my bubble guts were pretty low key. This is astonishing. I was expecting my period on Monday and had been feeling teeny cramps all week. Normally, my breasts would be extremely tender for about a whole week before my cycle, but that didn't happen this month. (The wanting-to-eat-everything for a week beforehand still happened.) So, it came last night.
I decided to take my first birth control pill at 11:30p, thinking that would be a good time to take it regularly in case I become nauseous as I did with the previous oral contraceptive I tried.
While also sick with viral sinus crud, I was mildly nauseous and in a little pain due to my period. I woke up around 4:30a and felt quite sick. I cannot definitively determine whether that was caused by the pill or my period.
I don't feel differently otherwise. I've eaten a lot today and have been terribly inactive due to illness, so we'll see how the next few days go.