This depends on the type and size of fibroids you have - https://www.arcfertility.com/can-fibroids-affect-your-fertility/
Irregular periods can definitely play a role, as it's probably hard to know when you're ovulating.
Here are some ways to figure that out -
Yeast infections shouldn't affect anything, and BV might, if you've had pelvic inflammatory disease as a result of untreated BV.
Have you had any testing at all from your doctor yet? Start by making an appointment, and go from there. They'll probably start with some basic tests for you and your partner, and if they don't see anything, move to more advanced things. This is an idea of what may happen - https://www.webmd.com/infertility-and-reproduction/guide/fertility-tests-for-women1#1
Hi there! How long have you been trying to conceive? They say it takes the average couple at least 1 full year of trying before they do conceive. It always felt to me like it happened out of the blue on day one for friends of mine who wanted a baby and it took forever for me so this statistic made me feel a little better.
Have you had any evaluation by your doctor? There are plenty of things that cause conceiving to be difficult. What I did when I wanted to get pregnant was state that intention to my doctor and how long I'd been trying. They can do various tests. One is a dye test to see if you have any blockage of the fallopian tubes. They can check your hormones. Those are often first steps. Also, knowing your cycle frontwards and backwards helps. I did temp checking which was very telling. I would take my temp and place it on a chart every morning before getting out of bed. This helped me see the average length of my cycle, good to know. And it also helped me see about when I normally ovulate. What happens with your temperature is that it will be at a certain level as you get your period and stay there until it rise one full degree (usually) which coincides with your ovulation. It stays at that higher degree until you get your period when it lowers back down . . . UNLESS you are pregnant and then it stays higher. Mine stayed higher two times, both times I was pregnant. This was really helpful for me to see when or about when I normally ovulated to time things. My doctor says to begin having sex on day 10 of your cycle (start counting at day one of your period as that is cycle day 1) and then have sex every other day for the next 10 days. Best way to catch that egg. Is your cycle normal or regular?