2 months negative hpt and blood test still no period
I am 23 years old and recently stopped taking my birth control pills after 5 years of being on them. I stopped taking them in May and since then have been a week late maybe a week and a half at the longest. The first day of my last period was September the 12th. I have been to the doctor and got a blood test and urine test there and they were both negative. I took 3 hpt and they were negative also. I haven't had a period in 2 months and it is starting to worry me. They just did another blood test to check my blood sugar and glucose. Haven't gotten the results back yet. Any advice as to what could be going on.