ttc for baby #1

Kristyn

so i’m 12DPO, i am due to start my period tomorrow. i had mild cramps the 10th-13th, with no bleeding or irregular discharge. i also had bad headaches on all of those days & a little bit today. i’ve been constipated & nauseous as well, & have a little bit of breast pain. usually i had cramps just the day before my period & my boobs hurt over a week in advanced. my boobs didn’t hurt until today. this is very irregular for me. what could this mean?