Your baby's vocal cords are being built this week. Their eyelids are fused shut to protect their developing eyes. Their bones are also developing in their arms and legs, and baby is able to make jerky movements.
The placenta is almost fully developed, and it will continue growing through your pregnancy. Once it's developed (at the end of the first trimester) it will take over producing hormones, which will solve some of the first-trimester symptoms.
At this point, you might be trading first-trimester troubles for second-trimester troubles. Or possibly having both sets of problems at the same time. Do your best to make it through and keep up with any meds or other things that have been helping.
As your uterus gets bigger, it'll start poking up past your pubic bone. You might be able to feel it from the outside, and it might be a little sensitive. It will also stop pushing on your bladder so much, so you won't have to pee so often.
Cramping -
Dizziness - Your body is working on creating extra blood to carry to your uterus and the baby. In the meantime, you may experience low blood pressure symptoms. If you start feeling dizzy, sit or lie down if possible. If you can eat something salty or drink something, it may help revive you a little.