Pregnancy symptoms?

Danielle
I've noticed starting today tender breasts and now this evening some mild cramping along with nausea. 
Any idea how soon pregnancy symptoms start? I just had my IUD out the end of November, and since then we have been TTC. I had one cycle that started 12-12. So if I am pregnant I'm not far enough along for a test. Just curious on anybody's thoughts. ☺️