New here- miscarried last pregnancy and now I’m so scared

Hello everyone. I’m 9w 5d today and just had my first appointment on Tuesday and ultrasound on Wednesday. I had a miscarriage at 7 weeks last time in 2022 and we have been trying ever since. Everything looks good on the ultrasound so far. I had an oral surgery at 6 weeks and I was still it to sleep. They asked me twice if I was pregnant and I had taken a text at 6 weeks and got a negative result so I thought nothing of it. But I took a test the next week and it was positive right away. With having a miscarriage and also being put to sleep, not to mention I’m 37 and classified as morbidly obese, I was in full panic mode. But as I said everything looked ok. I’m scared to let myself be excited and I keep telling my husband not to tell anyone till next month, he hasn’t listened. This will be his first and my 3rd. I have two beautiful girls from my late husband. I purchased a fetal Doppler and plan to check on baby here and there but I haven’t been able to find the heartbeat. I’m just so nervous but I want to be happy and excited. I just keep taking the nausea and constipation as a good sign. I’ll take any words of encouragement or advise. Thanks