baby not growing

So my fundal height has always been a few weeks out, then when I first saw the consultant 3/4 weeks ago she measured me at 26-27 weeks, every week since a consultant has measured me at 27 weeks, I had a scan a few days ago and babies weighing 5lb (im 35+4) but he's only gained around 8oz in 3 weeks, is this a problem? I've got another scan in 2 weeks and if he's still not growing much they will induce me, I jut feel like 2 weeks is a long time to wait and see😩 I've also been in slow labour since 32 weeks, dilated to 3cm and the babies head is now fully engaged and I've had a few bloody shows/lost my mucous plug the past 5 days!! Could he come soon????