Please help!

Hello ladies, I just discovered I am pregnant with my second baby. I had a miscarriage years prior to having my son and I’m so scared to have another. I am having very small headaches on and off, cramps here and there, and a little tired… I don’t feel like I did my first pregnancy, but I also don’t feel like I’m “pregnant” if that makes sense… with my first pregnancy I had bad migraines, bad nausea, and I was soooo exhausted in the beginning. can somebody reassure me that they felt like this, too? Thank you..🥺