Just want to say that 12 weeks is too early to be worried about sleeping positions! I’d say until baby is significantly bigger at around 20-25 you’re safe to sleep on your back
I’ve just got a cheap V pillow from Amazon for now and I’ve slept incredibly the last two nights 😂
BBHug me was great. Often on Vinted, or can get decent resale if you flog it on there afterwards. Swore by their nursing pillow too (ties around)