I'm so lost about what to do!

For 7 years (17 to 24) I had a serious drug problem. I decided to get clean at the age of 24. I had a few relapses with alcohol at first. Now, I'm 32 and I have been 100% clean/sober for over 6 years. I'm treatment, I was diagnosed with Borderline Personality Disorder. It is a psychiatric disorder that many people (including myself) tend to fall into drug use in an attempt to self-medicate. Anyway, in 2007 I went to a 60 inpatient center. Like I said earlier, I had a few brief relapses, but today, I have over 6 years clean & sober. I have a wonderful psychiatrist who helps me to regulate my feelings, and not act out for no good reason. I've also been seeing a wonderful therapist every week. I attend NA meetings regularly, I have made it through every question I the Step Working Guide. I worked very closely with my sponsor, and still do. I also do service to help others escape their addiction(s). I don't know what else I can do right to prove to my parents, my brothers, and their wives that I CAN be a good mother. My grandmother is against it too. I was diagnosed with Multiple Sclerosis about 2 and 1/2 years ago. I know my family expected me to go back to my old ways, but I proved them wrong. I had always said I want 2. With the MS, I know I can only handle 1 child. However, my family is the opposite of supportive. My boyfriend and I live together. We'll just have to ignore them. His family also doesn't want us together because they are worry that if MS takes my life, their son wouldn't be able to handle it. Talk about a clusterf*ck of a situation. Anyone have any advice. It just seems so hard.