Can’t help but worry 😢

So in August 2017 me and my husband wanted to try for a baby after our wedding! In Jan 2018 we conceived but unfortunately lost our baby in Feb 2018.
Amazingly without really trying we conceived again in March 2018, I then bled again around a week after missed period, the same happened again in the June.
I never ovulated at the right time, would always be so late in my cycle.
Since June I haven’t ovulated, I started a weight loss programme in November as I’d put on weight through depression. After months of doctors and private clinics we’ve had no help!!
Fast forward to March 2019
I finally ovulated again smack bang in the middle of my cycle!
Me being impatient had to do an early test which amazingly came back with a very faint pos!
We tested again on Mother’s Day and I got a certain positive!
I have since visited my doctors to be put on progesterone pessaries as tests were showing my prog levels were super low.
I do feel different this time round but I’m so worried I will get to our early 6 wk scan on (15th April) and it be our worst fears! 😢
Do you think I should keep testing to make sure levels stay up?
Achieve your health goals from period to parenting.