Aww sis, yan talaga yung frustrating part, regular period pero ang hirap pa rin mag-conceive, nakakainis talaga lalo na kapag may timeline ka nang in mind! Have you and hubby checked with your OB na para malaman kung may underlying issue like PCOS, low sperm count, or timing lang talaga ang problema, kasi minsan kahit regular mens, pwede pang may hormonal imbalance or ovulation issues na hindi obvious, at ang doctor lang ang makakasagot dyan for sure.