I was a single mum when I was pregnant with my eldest (now 15. Ex left when I was pregnant, and I was single until DC1 was 3). After getting my head around the fact I was on my own, navigating some of the social stigma of being a single parent, and dealing with the abuse I got from Ex, things were actually ok.
Met my now XH (I know how to pick them eh?! Actually I couldn't have foreseen anything that caused the breakdown of our marriage!) when DC1 was about 3. We split when DC1 was 12 and DC2 was 5. They're now 15 and 8.
Pros of being a single parent: house is cleaner, we have a really good routine. It's more peaceful. No more stress/worry about was XH was going to be like/do each day. I could leave money on the side and know it would still be there. I could come home from work...or wake up and come downstairs and my house wouldn't be trashed. I can make arrangements and the only reason we'd cancel would be normal reasons (like illness....not because XH has caused more fuckwittery). I know that if I don't do something then it is down to me. I was able to negotiate the hours I start/finish work to fit around childcare hours (this is rare as rocking horse shite in my profession - I'm a nurse) and I made it work. Relying on XH before we split meant that I almost lost my job because of him fucking about/disappearing off etc (I would have to drop everything and run to make sure kids were looked after). Life is a lot easier in many many ways.
Cons: it is all down to me. I have to work FT (mind you, I had to do that before as XH wasn't working, and I do love my job so no real hardship! I think it is more that I don't have the option to go PT), I have to make sure I stay as fit and healthy as possible to ensure I can keep working. I've taken out critical illness cover and life insurance to make sure my kids will be ok if anything happens to me (but then, I think it's prudent for anyone who can afford this to do this sort of thing). I think that the hard thing is the juggling....and when you have to be one place with one child and another with other child at the same time.
The kids have said that it is good as things are more peaceful, and they've learned to be more organised etc as we all have to help each other and be a team in the home.
The only thing I wish is that XH and I split sooner. I held on wanting to try absolutely everything to see if he would go back to being the man I met and married. Sadly it didn't work as he had no wish to be that person anymore. I think/am certain things would have been easier if I'd pulled the plug earlier.
You'll be just fine x