Should I be asking my doctor about Endo?

I have had heavy painful periods my entire life. I often am puking and passing out the first 2-3 days of my period, and have cramps most of the month. I have been TTC since August with no luck even though I have incredibly predictable periods and a 28day cycle.

My doctor knows my periods are bad suggested this month I go back on birth control for a month to help with cramping ( I’m a teacher and I’ll be starting summer break soon) and then have testing done over the summer.

Should I be asking about Endo or will they be checking for that during fertility testing anyway since they are aware my periods are heavy and painful.