My gf may possibly get pregnant this month.

She (27f) got her periods on 23rd May and we had raw sex with little ejaculated inside of her on 11th June she took ipill after 2 hrs after that incident happened.

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The thing is I(23m) dont want her to get pregnant rn. She plans on keeping the baby but I can't support her financially yet.

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What are the chances she could get pregnant?