TTC and I'm confused!! Can someone help!

Latesha • Wife. Mom to 2 angels 👼🏽👼🏽.💙NICU BOY MOM💙6.14.20

Ok. My last period started on 9/29/17. This is when I decided to throw away my pills and I am currently off of bc. I got married on 10/7/17. Around Halloween I spotted for a few days. It was very light. I know when getting off the pill, it could take a few months for your period to come back on. I took a test on 10/23/17 and it was negative. I still currently haven't gotten my period. But I've been feeling extremely tired, headaches, cramps, appetite is fluctuating. So many symptoms but I have not tested again. Is it possible to be pregnant that fast after stopping bc?