I get what you meant by the question but I'm trying to demonstrate that it is impossible for us to conceptualize what nothingness is without something. It's a philosophical issue that science can't answer. You're welcome to whatever beliefs and answers to the question you like, but without a way to falsify it, that's all it is. A belief* (edited correction to autocorrect). Not scientific truth.

Further edit: just to be sure I'm clear, you've asked me to imagine what life was like before I was born, thereby pointing to my birth, which is something. My life is something. I don't know what life would be like without