Irregular cycles

Arghhh! Need someone to tell me it's going to be OK 😢. We have been ttc for coming up to a year, but my cycles are completely insane. I just got af yesterday, after a 16 day cycle. The last few have been 44, 19, 19, 23 and 16. I have endometriosis and wonder if this could be playing havoc with my body. I've had bloods at the Dr's and waiting on the results. Just feel so down at the moment and no where to turn.