Trying to get pregnant after miscarriage

So on the 10th of January I had the biggest shock, I was pregnant. It wasnt expected, or planned. We had 1 accident on Christmas day, and I did a test to just put my mind at rest. 4 tests later I gave up trying to put my mind at rest with 3 positives and 1 digital that had an error message.

Completely shocked, I cried all day. 10 years I wanted another child, but it hadn't happened. Then i met someone new last year we talked about trying later this year as I'm due an operation in next couple months. But then 1 accident and I'm pregnant. I quickly realised I was happy (just shocked) i got excited. Then a week later I woke up, went for a wee and I was bleeding. I was devastated. It was a friday, the hospital did tests, said they couldn't tell me for sure until I had some more tests and I would have to wait until the monday. Longest weekend of my life! Monday it was confirmed I had lost my baby that I had waited for, for 10 years.

My partner and I are trying again, but I cant track anything as I havnt had a period since. I was due out on a girls night last week and I did a test to be on safe side so I knew if I could drink or not, but it was negative. But I dont even know when would be the best time to do a test or not.

I'm so confused about how my body is working now.

Any advice on getting pregnant after a miscarriage would be really helpful. And how long it took to conceive, for you to know your body again. Please.