Sexless!

Ok so I'm a single mom... My son is 14 months old... I haven't had sex since I found out I was pregnant.
I masturbate sometimes, but during ovulation all I can do is cry. Not just about this, but also all the stress that comes with being a single mother.
I need to have sex, but I also don't wanna just fuck the first guy I see, you know?
How can I cope with this?