Ok ladies... Need your help/thoughts

K
I am now officially 4 days late... Last time I was this last I was coming on birth control.. I have always gotten my period like clock work every 24 to 25 days.... Only other time was when I was on the mirena which was in Aug it got taken out or when I was pregnant with my other to babies.... I took a test and it was negative.. I haven't been on bc since the end of Nov. Thoughts please?!?!?!?