Cycle Buddy!

I just had my Mirena IUD taken out 12/4 and started TTC almost immediately. I started bleeding 12/5 for a few days so I'm guessing that was my first real period post Mirena. My cycle has been very irregular on Mirena. Assuming that was my period, I charted my cycle and I'm due to ovulate next week and next AF should be the beginning of Jan. Also, I noticed a few (hopefully) pregnancy symptoms: very sore breasts, frequent urination, mild cramping, mild fatigue, and lower back pain. I'm not sure if that's from the Mirena removal itself or something more wonderful. Is it too soon for pregnancy symptoms?

I'm TTC baby #2 with my fiancé (our first together). Anyone want to go on a baby making adventure with me (be my Cycle Buddy)?