planning to parent alone

After losing yet another baby in November I have decided to go through a donor and have/ raise a child alone.  Do you guys think it's crazy to plan a pregnancy to do it alone? I'm already a single mom (her dad helps me) to a 7 year old but I don't want to wait any more.  I'm finally done with my daughter's asshole of a father which was also the father to the child I lost in November.  
Having a baby is all I think about, all I want.  I guess I'm really scared of what it would do to my future and finding love.  A woman with two kids isn't exactly the woman men are looking to marry.