Today we can save extremely premature babies at 21 weeks. So we already have partial "artificial wombs," better known as neonatal intensive care units (NICU), that can cover half of the pregnancy.
A real-life artificial womb would probably be like an NICU today. It might be horrendously complex, requiring 24/7 monitoring by a team of doctors. The failure rate would be very high, just as many extremely premature babies don't survive in the hospital.
I don't really see it as something feasible for the average person. Let's say it would cost millions per attempt and have a ~75% failure rate. Maybe the wealthy infertile, or people like Elon Musk, would use the technology.