TTC For last a little over 2 years

my husband and I got married early summer 2015 and I went off birth control pill a month after our wedding and started not protecting and if pregnancy happened happened but then started trying more when we thought I ovulated I even tried the preseed lubricant for a little while and I've tried the ovulation strip tests but the tests were just more stressful and confusing so went back to a different app that I charted my period and went with the flow and hope i was right on when ovulated. Ive noticed my cycle is 26 days i think on average. We haven't been successful yet and back to some months try more than others and other months it's if it happens happens. We both really want children of our own and some people say try not to try or don't think about it as much...but when haven't been using any form of birth control this long and know there's been family stresses that we try not to effect us but does it's hard not to. Also, we know we really should go to the doctor to see if anything simple is wrong to boost fertility but money holds us back right now but hoping soon can go for ease of mind. I do take a prenatal vitamin when I remember and try to daily to help. Just figured this app is for fertility and I'm started tracking my bbt but doing the temp under my tongue with the special bbt thermometer. I get confused at times. Just didn't know if anyone else had advice or having someone to talk to or someone that knows fertility problems more than I do. I keep hoping it'll happen naturally and by time ready to ask doctor for help won't need to but probably not going to be the case. I'm happy for the loved ones around me that become pregnant and want so bad to be my turn so have a playmate. Some days more so I want that empty but hopeful feeling of wanting to be a mom but can't yet to be gone is hard. I know my time to be a mom will come when time is right but the waiting is hard. Sending happy thoughts and hope to everyone of you trying and hope you have success soon!♡ I know ttc can get overwhelming with other stresses life brings but I won't give up!