Sad. Dreading having a baby.

My husband and I had been TTC for 7 months when I got my BFP. Now I am literally dreading having a baby. I was so excited and then a week later a switch went off and I don't want to do this! Wtf is wrong with me??? This is all I wanted & all I can think is my life is over. I've been very depressed & anxious since I got pregnant. I can't seem to snap out of this mindset that I don't want to have a baby. Will I feel better? Or is this it? Anyone else go thru this?? I get to be a SAHM & my husband is amazing. We just bought our first house and I should be over the moon excited- & most days I don't want to get out of bed. Help.