Estimated birth weight

I’m currently 34 weeks and since 28 weeks I’ve been having regular scans to monitor my baby as he’s been considered to have IUGR. Baby currently weighs exactly 5lbs as of today, and I totally forgot to ask my sonographer and doctor the estimated birth weight but does anyone have any guesses or has anyone been in a similar situation with their baby?

I see my midwife on the 13th and have another scan on the 17th but I’m just eager to know now in case I have to rush out and buy tiny size baby clothes as I’ve bought all up to 1 month and 0-3 month clothes! Thanks.