First time TTC very confused!!! Any advice will help

[stari_nite]

Hello everyone! I’m really new to all of this! I’ve only been TTC for 2 months now. I’m 13dpo and AF is due in 2 days. Today I had weird brief pink discharge (sorry if TMI) and mild cramping, this never happens before AF. I have tested and I’ve gotten BFNs so far. I’ve been trying to temp and I take it at the same time every day but they seem so all over the place and now I’m just not sure. Any sort of guidance would be appreciated thanks in advance!!