The only women that I know who were ever happy in their lives waited until they were in a loving relationship and chose to have children.
A few people I know had abortions and they were pleased with the decision. They hurt for their choice, but knew that having a child at that point in their lives was not good for them or the child.
A couple chose adoptions. They had some major emotional issues because they had bonded with the baby and then gave them up.
The ones that chose to keep their babies ended up harbouring a lot of anger and resentment towards the children and did not provide them with a good life.
being a mother is the hardest job out there.
It is harder doing it alone and with little support.
Yet it is also the most rewarding.
The only thing I can suggest is to think about what you want out of life, weigh each option carefully and make the decision that is best suited for you.
Good luck.