Help pleaseee

Lindsay • Michigan. Engaged. 27. Mother to a beautiful 6 year old girl. 💖👑 Baby number 2 due January 2019! ❤️

So my daughter was not planned and I had no symptoms whatsoever. I’m currently ttc and I decided to take a test at 12 dpo and got a bfn. My boobs have been really sore/heavy for like, the last week. (I never have this issue before af.) Is it possible to be pregnant and feeling symptoms before getting a positive test?