berries,
CD - cycle
DPO - days past ovulation
O - ovulation
AF - period
example - if a gal AF came today tt consider Day 1 of her CD.
14/3(CD1),
15/3(CD2),
16/3(CD3),
17/3(CD4),
18/3(CD5),
19/3(CD6),
20/3(CD7),
21/3(CD8),
22/3(CD9),
23/3(CD10 - fertile day)...