Faint PT positive

Hello po, new to this group. Nag PT po ako for a few days na noticed a shadow or very faint line nung January month end. Mga 2 weeks na din ako nakakaramdam ng cramping sa puson Feb 1-3 nagPT po ako mas solid na yung line. Its supposed to be my first day of period bukas. Should I wait until matapos ang supposed period days ko bago magpacheckup mga next week or pacheck na kaagad bukas? BTW, started taking Belta folic last month lang