Solo parenting, pregnancy and SEN

Hi lovely’s so I’m just here to seek advice and to see if anyone is in a similar position to me 🥲 I’ve raised my little boy solo for 3 years with no involvement from his parent and I have recently found out I am pregnant. I am trying to weigh up all options as my little one has SEN - he has ADHD and is currently non-verbal so life can be hard. Is bringing another baby into the mix the ‘right’ thing? Has anyone raised 2 children solo and in a similar position? Any advice is appreciated, good or bad 🫶🏽