I'm 3 days late on my period and have vaginal lotion like discharge

Discharge: If you think you are pregnant, then get a pregnancy test at the drug store and put your worries to rest! as for as the discharge, i would get it check out if it is not normal for you. Good luck!

Sexually active?: If yes - take the test. Reasons for missed / late period include: an anovulatory cycle in which no egg is released, marked v or ^ in weight; eating disorder; Over-exercising (endurance athletics), stress, travel, significant illnesses, oral contraceptives & other meds, Illegal drug use, breast feeding, hormone imbalances and medical problems (i.e., PCOS). Pregnancy is #1 reason.