Looking for advice, good vibes, and prayers

So this might be dumb but I am sitting in the waiting room at my doctors office waiting to see an OBGYN for the first time ever. I have never needed to go to an obgyn because my PCM always did my pap smears. Now that my husband and I have been trying to get pregnant for 19 months I thought it was time to get some help. I am so nervous. I already had a transvaginal ultrasound done and it was normal. I had bloodwork done to check all my hormones and it was all normal, so I have no idea what to expect now.

Someone told me about a test where they shoot dye up your uterus to see if your tubes a blocked. Other than that I'm not sure what else they can do for me.

I also heard that having a different blood type from my husband can cause issues. Is that true? Like if he has a negative blood type and I have a positive could that be a problem? I dont actually know my blood type...I'm just curious!

My husband still is refusing to get a sperm analysis done so I am doing what I can in the mean time.

Please ladies, wish me luck, send good vibes, keep me in your prayers! I have wanted a baby for so long and I am starting to lose hope!