Grad school and TTC?

Th
So I'm not in grad school yet but I will be following our wedding in May 2019. It's a year long program and I'm kind of wanting to TTC while I'm in the program. Is this a bad idea? I have to go to grad school because of the demands of my career and I just want to get it out of the way. I have PCOS and endometriosis so the earlier I try, the better. Have any of you done this or are doing this? How has it been for you and your bf/fiancé/husband/partner? Advice?