Am I normal?

So I am 19, I'll be 20 in May, and my husband is 22 and we are ttc our first. I am troubled though because we have been, trying but not actively (opk's, tracking cycles, testing often) for 2 months over a year. Recently in Feb. We decided to start activly trying, including Preseed in the mix. Nothing at all. Now with the question. When I was 15 I started taking birth control and I took it for 2 years and stopped in April 2014. After I started picking up weight. Stress is mainly why I believe but ever since I stopped birth control it just incresed about 60lbs in a year. I had originally weighed 135-140 so it was a massive gain. My periods were clockwork since I started my period at 10 and were clockwork on Birth Control as well. However, after I stopped taking them I have become irregular. Longest I have gone without a period is 3 months. Supposedly nothing is wrong with me, according to the on Base (husband is U.S. Military) woman's health doc who has checked me twice now. Hormones, my thyroid, etc etc all fine. I have even had an ultrasound for good measure, and getting a second one soon. I get faint cramps all the time. Almost ghostly in a sense. Sometimes when my husband and I have sex and (tmi) he goes deep, it feels super sensitive (hasn't always been this way) when I do have my period it feels so bad I can't walk, like it numbs my legs, I have even taken muscle relaxers to aliviate the pain because nothing else works. But again nothing is apparently wrong. Husband got checked and he is in working order so, I don't really know what to think. My doctor seems to shrug it off, even though she does order everything in the book to check, her attitude is very nonchalant. So anyone similar? Have an Idea if there is something I should specifically look for? Am I completely normal? Ask anything if I didn't give enough info and thank you for reading I know it was long lol :)