Losing hope now😔 after miscarriage

So I miscarried on the 20th march and I'm still not pregnant. You hear all these stories of women being so fertile after MC and getting pregnant straight away that I was sure I was going to get caught before now. I know it's only been 3 months but I'm now convinced that I won't have another pregnancy. I have endometriosis (only mild) and I'm 35 so feel like it's all against me. *looking for encouragement* xx