All along I've believed none of this shit is real with Angela.
In addition to what you said above, Angela is also obviously addicted to reality TV paychecks (hence her two appearances on Jerry Springer or Maury or whatever shitshow it was).
I'm of the opinion this entire ridiculous baby/egg story line is just that...a story line she crafted just to keep her repugnant ass on the show and get that easy TLC paycheck. I don't even think she intends to legally marry Michael or bring him over to America.
Now, whether Michael is in on the end game or not, I cannot even speculate. Sometimes I think they're in agreement to use these shenanigans to assure their spot on the show and get that almighty paycheck. Surely he can't keep putting up with all of her abuse and keep hanging in there for the green. I also never lose sight of the fact he was a Nigerian scammer when he hit on the biggest, smelliest, lowest lying catfish in the internet ocean, so anything is possible, including the two of them being in cahoots.
Other times, I think maybe Michael isn't in on her end game...especially when I see him repeatedly apologizing for shit and I look into his eyes and see that same look Azan used to get, like a bit of their soul is flying away right before their eyes.
They may prove me wrong, but I've always felt Angela is on this just for the paycheck and there's nothing too outrageous she won't do to get it. I hope they're gone next season, otherwise fucking Angela will say she's in training to run a triathalon or some such ridiculous bullshit.