Any breastfeeding mama that have nurse while pregnant?

Solange 🌸 • Mom of my sweet pea 👼🏻 RIP 01/04/18 💕 Rainbow baby 🌈 👧🏻 born 07/05/19 💗

I’m about 5 weeks pregnant and I am breastfeeding my 1 year old. I read that some baby’s wean off because the milk taste different but my LO doesn’t seem any different. I’ve had a miscarriage before my 1 year old, so I’m worried that breastfeeding can cause preterm labor.