Early Pregnancy Symptoms?

Aly • I`m Aly! I`m 26 and a proud Air Force Wife. Mama to three Boys. Connor, Liam and Daxtyn💕
I'm 5 days away from when af is supposed to start. Currently I'm having creamy white discharge and it seems to have stringy stuff in it. I typically have really sore breasts prior to af and now my breasts aren't sore at all. I am also having mild lower back pain. Should I try testing? Should I wait and see if af starts? My husband and I have been TTC since December. Do you think these could be early pregnancy symptoms?? TIA!