Finally a normal bbt- I think. Maybe vitex helped!?

Is this what you’d expect a woman with “normal” periods to look like?

My bbt previously was all over the place it seems! So my most recent bbt (last pic) seems to have a clear before and after of ovulation and is much more relaxed compared to my very up and down previous charts! I’ve started taking vitex and wonder if this has anything to do with it! Keeping fingers crossed this is our month!