Nervous of MC

The first time I got pregnant and we tried to plan for a baby, I ended up having a blighted ovum at my first ultrasound and had a natural miscarriage that weekend after my appointment. Never had even heard of that! Waited a month and got pregnant not meaning to but thankfully with our daughter who is almost 4! Now we have tried and planned for baby #2 and I ended up taking a digital test that said pregnant while all other tests are still so faint! I'm so nervous being so early about miscarriage and being aware of everything going on. I am 4 weeks tomorrow and cannot believe I know this early!!! I'm so nervous and can't shake the thought of miscarrying due to the first time. I was so painful and empty!