Hey girl. Congratulations on your pregnancy.
Sometimes after intercourse you can bleed a little. I had the same problem. It can be normal but if you're still concerned call your ob.
The emotional rollercoaster can last off and on for the whole pregnancy, but by the time I was about 5 months it had settled down a lot.
You might have pain when you urinate if you have a urinary tract infection. They are common during pregnancy, but you need to see your ob. These infections are easily cured but can be dangerous to your baby if untreated. Besides, you will just be more miserable if you don't take care of it.
Hope this helps!