Help with EVERYTHING

Hello ladies! I’m a mom of a 6 year old and I’ve been off birth control for two years. My husband and I are trying for baby #2. I was 18 when I got pregnant and it was a accident. I have had a terrible time getting pregnant for about a year of trying. I know once I took my IUD out (Jan 2020) it would take a year (high balling) for anything to happen. (Mind you my doctor said it could work instantly. But I knew it could take up to a year after I’ve had my iUD in for 4 years. I knew a year would be the longest)

Some background on me, I am 5’7 and WAS 215-220. I’ve lost 70 lbs and have been on a healthy diet for a year. Weight I believed was a issue, but what’s my excuse now for not getting pregnant? 😂

How do I know if I’m ovulating? I’ve taken test of course but I’ve read that doesn’t necessarily mean I am ovulating. I’ve used this app for ovulation and it’s my first month! Fingers crossed, but my hopes aren’t too high. 👍🏼 if someone could send tips that would be helpful! I know not having sex until my peak is preferred, but I’ve heard different as well. Help! What works the best? How do I know what will work the best for me?