No sense in posting a question mark, just report the spam. That simple...
Welcome to the forum, but I am warning you right now that most members are pro rescue/adoption. Letting your dog become pregnant was irresponsible. There are millions of dogs being put to sleep due to irresponaible breeding, and pit/pit mixes make up most of the shelter systems. Only one out of every 600 ever find a home. Be responsible and fix your female and male so it doesn't happen again. Sometimes people make mistakes, but when you do nothing to correct them then you're in the wrong.
If you are worried about things you need to take her to a vet.
I hope you stick around. Once you get posting access, you can post in the general and get more info/advice from others with more experience.