Got together in February, pregnant by September, first child at 38.
Now pregnant with second and will be 40 when he or she arrives.
My parents moved in together after 6 weeks (in their mid-20s), married in less than 6 months and are still happy together 40+ years later.
I feel like my overwhelming desire for a child affected most of my thirties, as I just couldnt be happy without knowing whether it would happen, and knew I would not be able to come to terms with it if it didnt. By 37, I was fully expecting to never meet anyone, and was investigating how to have a baby alone - went to the GP for fertility checks, sounded out friends, looked into Danish sperm banks, online forums etc.
I feel incredibly lucky to have met someone kind, loving and altogether wonderful at 37, and to not have had any problems conceiving, but do have female friends in their mid- to late- 30s who have not met anyone/ are having fertility problems/ have settled for an idiot.
My advice is to look into going it alone - if you really want a child and know in your heart that you will be miserable forever without one (sounds dramatic, but that was me - and even more now I have one, nearly two), then work towards it. Talk to your family, make practical plans, take job decisions with it in mind, save - whatever it takes. Obviously single parenting is a tough road, but tougher than being childless? For me it would not be, although I am so very grateful not to be in that position.
Meanwhile a decent man might come along - very likely if you are only 33! But if not, don't settle for someone who you don't love or who is not good for you - be ready to make it happen by yourself if that's what you really want.