Buying stuff before the second trimester

I had my first ultrasound and everything looked perfect and healthy and my doctor told me after 8 weeks and hearing a heartbeat the risk of miscarriage is 1-2% which is really low. So I went out and just bought baby soap and lotion a box of diapers and wipes and white onesies and socks. People are being so negative towards me saying it is bad luck and to take it back.

The one girl at my work who is pregnant again after a miscarriage told me someone bought her something before then she lost her baby at 13 weeks and I am so stressed out.

Did anyone else buy a few things before and their baby was fine?