6 weeks and struggling with emotions

I was so so happy when we got our BFP. It was our first time TTC (although my partner has a 2y/o daughter from previous relationship) and we were over the moon.

I am 6 weeks now and the last few days I am struggling so bad with my emotions. I feel so down, stressed and really freaking out about being pregnant. Before I got pregnant I was so excited and sure this is what I wanted. I’m so confused and sad why I feel like this now. Is it just my hormones? Will it settle and I’ll feel okay again? Any advice is appreciated, please no judgement