IB then crazy symptoms??

So Glow says i ovulated on the 14the but i feel like it was earlier than that. On the 20th, i had just one day of this very faint pink spots that only showed when i wiped. Now im exhausted, suuuuuper moody, certain smells bother me and my boobs hurt extremely bad. Also, my nipples got a bit darker. What do you guys think? When should I test? Im dying to know but i dont want to waste $ on tests.