I'm really at a loss as to what to say here. On the one hand, I am a firm believer if there is smoke, there's usually a fire somewhere. On the other you mention a soon to be child. I know I was VERY hormonal when I was pregnant and that can really mess with your emotions.

I guess all thinks concidered, I'd let him know exactly what's bothering you. You know he's late and has lied about where he is. See where he goes from there. There could be a perfectly logical explanation for everything. The fact he lied gives me cause for concern. But then again, if this is his first child, he can be dealing with some emotional issues himself and not want to own up to it.

Without trust a relationship cannot survive. Is he willing to tolerate you checking up on him to rebuild that trust?