Late month after chemical

Just wanting to get some feedback or similar experiences:

So had a chemical in Dec (bfp then period started 3 days later than usual). I counted first bleed as CD1.

Ovulated as normal CD16. TTC. Did a range of early predict hpt's from 10DPO, 11DPO and 13DPO. All blaring BFN. Convinced that period will start.

Period was supposed to start today and no sign. So I am feeling a bit confused, sad and frustrated! Wish I had answers or new the outcomes. Feeling lost.