Hi hon! Sobrang importante talaga ang tanong mo, kaya go agad to your OB para ma-clarify nang tama, especially with irregular periods like yours, ang timing ng PT results talaga dapat i-confirm ng doctor para sure. One of my mum friends had the same situation with irregular cycles, at ang OB lang ang nakatulong i-figure out kung kelan exact ang best time ulit to test or kung kailangan repeat. Don't rely lang sa PT results kung may doubts ka, better safe na konsultahan ang doctor, alam mo ba?