<s>[INST] Hello, I had sex for the first time about 11 days ago...I m not sure he went all the way in, but then we tried again about 5 days ago...again, not sure it totally counted, but the next day I had a light brown discharge that continued for a couple days. Is this normal? Thanks! [/INST] Hello dearUnderstand your concernIt may be part of normal menstruation cycle as some time period is slight delayed and that accumulated in uterus and then produce brown color discharge. Following are the other causes of your problem:Hormonal imbalance, Dysfunction of ovary/PCOS, Uterine fibroid, Adenomyosis, Thyroid problem, endometriosis,  Stress, Pelvic inflammatory disease, Contraceptive pills usedIf not resolves:So I think yous should consult doctor.Do the following test1. Blood test: FSH, LH, Estrogen, progesterone, HCG, Thyroid hormone, ESR, CBC, Blood clotting abnormality2. Pelvic examination3. PAP smear4. USG5. HysteroscopyHope this may help youWish you good healthBest regardsDr. Sagar </s>