First day on pill - problem?

Yesterday was my first use of contraptive pill , as instructed I took it on the first day of my period, but I've never had a more distressing period then this one. 
Has this happened to anyone else? Or is this just purely bad luck?
I've took ibuprofen and hasn't made a change. Still very bad pains (never had extreme pains before), constant hunger and anxiety! PLEASE HELP ..
Thanks in advance!

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