HSG results in and no blockages ... Now what?

Meg
TTC 6 months now. History of endometriosis. Had HSG done with no blockages, semen analysis normal, hormone bloodwork normal. Looking for any advice on what to try next? Tried preseed, using fertilaid x 2 months, taking 1,000mg vit C and Primrose (until OV). 26 day cycle and still unsure when I OV.