Lesbians trying to conceive

My partner and I are trying to conceive for the first time. I find this app frustrating at times because we can't just have sexual intercorse like the app reminds us to do. It is a little bit harder to conceive as a lesbian couple. We are going through a cryo (sperm) bank. Sperm that has been frozen doesn't last as long inside the body (only about 24 hours as opposed to 72 when a man ejaculates inside the woman's body) and it's really expensive. Are there any other lesbian mommies trying to concieve for the first time? Any advice? We are using clear blue digital ovulation tests and I have started a prenatal vitamin. I just feel as though our chances of conceiving are a lot lower then a heterosexual couple and it can be discouraging some times. Any and all advice is welcome :)