Physical intimacy as such won't be an issue even in the early months of pregnancy. Though intercourse has been reported to cause abortions. However breast fondling leads sudden surge in oxytocin release in the female body, which can cause sudden IUFDs in later pregnancy. Though it's effect on abortions in early pregnancy is not documented.

No if it's only the actual intimate relationship i e sexual intercourse that needs to be avoided , it's fine with kissing or smooches If you have any questions you may consult will be happy to help