Breastfeeding while pregnant?

Harmony 🍉 • 9.16.17💙 11.25.18💙

So i am 5 weeks and 4 days along and have a 6 month old baby boy who's breastfed. Is it safe to continue breastfeeding? Or should i start weaning him off? Any tips on how to even start the weaning process? Sorry guys I'm a FTM