First pregnancy around 34 weeks. I started bleeding at about 7 months with him. I got to the hospital, told the nurse how far along I was. She came back in the room when the doctor showed up and I heard her say I was only 7 weeks and that if I was going to lose it, I was going to lose it. My mother pulled her aside and told her I was actually
7 months. Imagine her surprise looking at a flat bellied, 7 month pregnant woman. He eventually was born 3 weeks early at 6 and 1/2 pounds.
Second pregnancy again around 34 weeks. My son had birth defects. When we went for the surgical consult (still pregnant) they said he would be luck to be a five pound baby. Imagine there surprise when I popped out a nearly 8 pound baby.
Third pregnancy, never really showed. My doctor joked that I was just a petite one and too burning up too many calories chasing the other two. I went in for my induction and the nurses thought I was mistaken because I "couldn't be as far along as I thought I was". My doctor confirmed the early delivery (almost 4 weeks early) because I began having unexplained bleeding a few weeks before. Unexplained bleeding is an understatement. Blood running down my legs is a better description. Which reminds me, if you ever have sharp or achy pains around your belly button, run (do not walk) to your doctor. Both of my pre-term labors started with an achy belly button (more like a very sore muscle on the outer rim, it actually hurt just to touch it because it was so tender). My beautiful princess was born at a healthy 5 pounds 13 ounces with a very capable set of lungs.
The most I ever gained in any of my pregnancies was 26 pounds (my second and the only full term was 26 pounds with signs of preeclampsia to boot, first 21 pounds and my third 16 pounds). I've heard the smaller you are, the quicker you show. Not true. I'm 5'2'' and normally weigh 102. I've also been told that with every child you show sooner (because the uterus loses strength with every pregnancy). Again, not completely true. It's all in the body type, diet
and excersize. I'm lazy as hell and eat like a pig (lobster
tails and crab legs with a pint of butter) so i'm not sure why I didn't gain a lot. I would say on average, you will notice clothing getting tight around 5 months. By 6 months you will probably give in to stretch pants (maternity jeans never fit right until at least 7 months, but maternity bibs are great). Don't be surpised if you wake up one day out of the blue and say "wow, i'm fat as crap".
This sounds like your first pregnancy. You should feel the baby kick right around 18 to 20 weeks. That is usually the same time you start feeling "blobby". Don't worry, you'll pooch out in no time.