To answer your question, yes, you can definitely visit a chiropractor while pregnant. In fact, some chiropractors specialize in caring for pregnant women exclusively.
That being said, make sure you choose a chiropractor who has post-graduate training on pregnant patients. Don't just assume that all chiropractors have experience in this area - just ask.
Dr Tanase said it perfectly! I did chiropractic care for all 4 of my pregnancies...It was a God send....especially when they use the pregnancy table that has an opening for the belly so you can finally lay on tummy...So Nice!!!.....So got quickly to seek the help you need..best of luck