Advise please

Laura

After some advise ....I had my last AF on 06/10/15 and I done an opk on 23/10/14 which showed I was ovulating. On 27/10/15 I got a possible urine infection. I went to the doctors and they said it was ever so slightly and sent my urine for further examinations. I have never had a water infection and I am 27 years old. The only symptoms I had for a water infection was an uncomfortable feeling at the end of a wee in the cervix area and very frequent trips to the toilet. I have head that this could be a sign of early pregnancy due to hormone changes. I have also been very tired, several migraines and sensitive to smells/nausea but not being sick. I done a test on the 30/10/15 after seeing the doctor and got a negative ... Was it too soon? Due AF at some point this week. Have been late last couple of months so unsure of exact date of AF now.I don't know if I'm looking too much into this. What do people think? x