Relationship Advice to the MAX

Let's cut through the bs... point, blank, period.. I'm 19 years old and pregnant.

I know relationships are bound not to last, especially at a young age.

But right now, I need advice on my story.

I met this guy last year and we started dating within a few weeks. We took things pretty fast...

We really like each other, but now that I'm pregnant, of course... I'm starting to feel like I was just another girl he fucked but accidentally got pregnant.

He claims he "loves me so much" and that he's "positive he wants to be with me".

-I'm so clingy and I'm always asking him questions to reassure that being with me is what he wants. I am CONSTANTLY reminding him that we do not HAVE to stay together because we are having a baby and I try to explain to him that it'd be unhealthy.. he REFUSES to leave me.

Just recently I caught him messaging another girl offering her "good dick" because she came to him complaining about her boyfriend's soft dick and her relationship problems.

He responded with apologizing and being very brushed off about the situation when I confronted him about it...kinda like get over it.. but I feel like I can't trust him anymore.

I really want to trust him and I really want him to just get his shit together- but at the same time, I understand. He's only 21

We lived together for about 6 months and when I started becoming a little bit more pregnant, he suggested that I move back in with my mom so we can save money for an apartment.

He hasn't saved a dime. He's been blowing his money on weed and beer. He hangs out with his friends all night... just showing no interest at all in being a family with our own apartment.

He has until September 1st to come up with $1000 or I think I should leave him.

Is that messed up? We separated with plans to establish a better foundation for our family and it all fell to shit because he's not taking us seriously.

If I was working and I was the one with a job right now, things would be TOTALLY different. But, unfortunately.. things aren't in my favor to control the outcome of this.

Please help me out..

Should I stay or should I go?

If I go, I don't think there will ever be a chance of having a family with my baby's biological father.. I'm scared and I don't know what to do.