Hi Tia! Ito talaga dapat i-check with your OB/GYN first, hindi ko ma-advise based on what you're describing, bawat tao ang situation, especially pag mahirap ang period history mo. Pumunta ka na sa clinic para sure, okay? One of my mum friends had questions din about timing, at the doctor explained everything clearly sa kanya, worth it talaga ang consultation! Lagi naman may paraan, pero kailangan ng professional advice mo. Take care, momshie!