The cycle looks good to me for not having much info about you to go on....I wanted to say though, as far as hcg goes, I've read research showing it was good post cycle and then read that it isn't...I also read a few that suggested running it from the very start, claiming it will prevent atrophy all together.
I can tell you in my experience (I've ran it as pct and throughout) that for me using it as part of my pct didn't seem to help at all (based on the exact same cycle, duration, dosage minus the hcg)
When I ran it throughout the cycle I got a lot better results.
The first time I ran throughout I had a lot going on and missed a few pins and also wasn't getting bloods at the time and needed to adjust my dosages, but all in all I had very little atrophy and my pct time was cut back quite a bit.
The next time I did it I stuck to the schedule and dialed in the dosage for me and while I didn't throw my nuts on the digital scales, I can say honestly I had little to no atrophy and my pct really didn't even feel necessary (still ran it to combat other imbalances)
Now with that being said, my buddy who ran same cycle as me at the same time, had significantly different results and he still atrophied running it throughout....but he also would get larger estrogen spikes than me and worse side effects.
So idk if it's just different for everyone or what, I don't enough people who've ran throughout to actually put any real stock in it, but there are a few articles online and some forums discussing it u may want to check out.

This is one of the better first cycle suggestions I have seen. Good job on doing your research ahead of time. It's very similar to my first cycle years ago, and I was pleased with the results.

You shouldn't have any issues using 500 mg in the same day prior to your vacation. You may consider using two 1 cc shots in different sites since virgin muscle is more prone to PIP. A 2cc shot is far from extreme though, so I would say that's up to you. If you're not comfortable injecting yet one shot isn't a bad option.

Like Yoked said below, HCG and Clomid aren't bad ideas if you're concerned about fertility post cycle.

Keep us posted on how your cycle goes. Good luck!

I like the layout but would really like to hear a little more:
Age
Diet
Workout Plan
Current labs

As for the HCG, a lot of guys want to run hCG for a post cycle, I believe that it is because they have heard that hCG will stimulate the testes to begin production again. This is true but to what end. Why do we run testosterone during a cycle? To keep our test levels up due to the decrease that takes place when we run other steroids.

This same concept should be used when it comes to hCG and hMG. They should be used during but towards the end the cycle to help maintain the LH and FSH levels and give them a boost. As the level of androgens in our body increases, the body tells the pituitary to quit making the gonadotropins, LH and FSH so the same will work in reverse. As the Androgen levels began to drop, the body will once again signal the pituitary to began production.

Consider this. If you run hCG and/or hMG as a post cycle, your body will think that you have enough LH and FSH and will not began producing them. In contrast, if your levels are elevated or in a normal range when your cycle ends, your body will notice a decrease, and the pituitary should began producing them again.

Someone did some research.
You can dose 500mg in one shot, you might have a bit more estrogen conversion with the peak and dip but it's not going to hurt your cycle any imo.
HCG is a plus since you're trying to have kids, you may also want to consider clomid to make you extra fertile, typically I would drop the nolva to 20mg for 4-5 weeks with the additional of clomid being ramped down for 5 weeks.