I'm sick & have been on a lot of medication recently. my gp did a urine test inc. pregnancy, it was negative, i'm still late, shall i do a home test?

If it would reassure: You - go for it. However, serum HCG pregnancy test is the gold standard. 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), travel, significant illnesses, oral contraceptives ; other meds, illegal drug use, breast feeding, hormone imbalances and medical problems (i.e., pcos).