TTC is a nightmare. I would definitely read up on BBT and double check if the raised temp confirms egg release, as that's a nice easy way to confirm, if so.
There will also, hopefully, be posters along who will tell you the tests doctors can to do check if you ovulate, I've read them many times before but I've never taken it in as not needed it in the end.
The best, absolute top key piece of advice is to not panic/stress. You must have read all those stories of people trying IVF etc. for years. Never conceiving, they give up and look to a different future and, once they're not panicking any more, they just fall pregnant. Not scientific (although there's something to be said about stress being bad for the body) but just Sod's law, I'm sure.
Don't want to post too much detail but I had a "urgh it's not happening this month" feeling a few months back after several failed attempts. I didn't symptom spot, didn't pee on a stick, didn't resist eating/drinking the things you shouldn't have when pregnant. Realised I thought I was late one day and checked my app, which confirmed. I tested and, wouldn't you know, straight up positive test!
It really does just come the time you give up sometimes.
Just reread your OP and I see it's been over a year so it definitely can't hurt to see a doctor for some tests anyway.
Also the SMEP (sperm meets egg plan) starting with finishing your period, have sex every other day until you get a positive OPK (hopefully you do next month!) then have sex every day for however long you can, check again how many days before and after ovulation sperm can fertilise, I think it's 2/3 days after, and I just added a few extra days on each time, for good measure, in case I ovulated a day late etc.
Sorry for the long post, just trying to give all the information I used in case any of it helps.
Best of luck with it all 
wishing you a lucky month ahead 🍀