Feeling hopeless after loss/ lgbt

Hello, I’m 25, at the age of 20 I had a miscarriage at 11 weeks. Since then, the person I was with,male, and I went our separate ways shortly after for other reasons. Since then I’ve gotten into a relationship with a female. For a while after my loss, I didn’t want kids. I was extremely hurt, angry, every emotion. Especially seeing everyone around me having babies and getting pregnant. About 2-3 years into my relationship with my partner, im finding myself wanting a baby. Ivf is extremely expensive, I know sperm banks are an option however, first time getting pregnant took almost a year so I know I have a hard time ttc. It would be expensive as well. I’m just wondering, if anyone has gone to sperm banks around how much have you spent, or even ivf? Are there any other lgbt couples out there who are struggling?

Sometimes my partner tells me if I want kids that much, that I should leave and find that. She wants kids as well but she has accepted that it might not happen for her, long before we met. I hope this doesn’t come off as wrong, I love my partner we with everything I have, but it makes me so depressed how much I want to be a mother, and how it seems like it’s something I won’t ever have. And if we remain together, I don’t want to resent her later in life when “my ship has sailed” for lack of better words.