When is enough enough should I call it quits? Should I look into getting a hysterectomy?

So I realize I am still pretty young (turning 30 in June) but I have very painful periods with several large clots every month. I have one child from my first marriage (7yrs old) that aside from dna and last name is totally my current husbands son! We have wanted more kids and seriously ttc 2 separate times now for about a year each time (have not used any birth control since 2011) Dr. Basically says we will be lucky to ever have children unassisted due to his sperm count and motility and my irregularities. I have been on various hormones to regulate me and help me ovulate. We have undergone inseminations but will never be able to afford invetro. Every month gets more depressing as I continue to see giant negatives. My husband is very go with the flow so not much really phases him. He would be fine if all we have is our son even though we both would love another 1 or 2. I am trying to decide if I can continue to handle the disappointment, mood swings, all the extra hormonal side affects, costs of ovulation kits, dr visits, and pain every month with the probability of no baby ever I tried the just move on and be happy with what I have approache. But I still have that small bit of disappointment every month as cramps kick in and I start. I don't know that I can fully move on if there is even a small chance I could be pregnant. Is it just me being a pansy and hormonal? Should I suck it up and keep hoping for the best or time to look at calling it quits?

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