Pregnancy hormones...or am i right in being angry?

It was my sons birthday today, (april 4th) And this morning we went to an easter egg hunt at a john deer dealer. My husband came up with it( i think just so he could go register to win a lawn mower) so we went and did that this morning. Then we came home and our son was ready to take a nap so we laid him down and then went and took naps ourselves. I was past the point of exhaustion...im 30 weeks pregnant and the dr told me at 28-32 weeks the baby is going threw a growth spurt so thats the reason why im tired all the time, ( plus i dont get much sleep because she is always kicking me in my ribs!) I was out late last night getting things ready for my sons birthday and didnt get to bed till 2 am. So we lay down for a nap, and my husband gets up at 3 with our son and i get up at 4. I come out of our bed room and my husband is posted on the couch on his computer playing some darn game online. (this is a new addiction just started last night) We where supposed to have a BBQ at the park but it was really windy and our son hates the wind, he isnt scared of the wind, he just gets really mad when it blows in his face...lol. So we bbqed at home. i had to make my husband get off the computer and go bbq. Then we eat dinner and im cleaning off all the plates and he is back on the computer, i tell him to get off the damn computer, a few minutes later so we could sing happy birthday and do our sons cake...well my husband threw a little hissy fit because i made him stop in the middle of the game. After the birthday cake we then go out and play outside, the wind died down a little bit. After that it was time to give our son a bath so i gave him a bath...and what do you know my husband as soon as we come in gets right back on the freaking computer. And this is where he has sat for the rest of the night. Its now almost midnight and he just went to bed about 20 mins ago. Before he went to bed i had him scoop the cat litter, it was getting bad, and he threw a fit about that. All night i have been cleaning and taking care of things while he has sat on that computer. It was our sons second birthday today. Our sons first birthday he was deployed the actual day and got home 8 days after he turned one, so we threw him a party after my husband got home. Im just really ticked off at the minute. Im angry because it was our sons birthday, this should have been a full family day. i told my husband he couldnt work in the basment today ( he always does) because we needed to spend this day together as family, but instead he sits on the freaking computer. Im so tired i wanna go to sleep, but i cant because well one im to angry and two because my daughter is pressing on my lungs and making it hard for me to breath. Do i have a right to be so angry or is it just hormones?