It is still safe to have sex in the 3rd trimester?

It is safe to have sex in the third trimester, provided you don't have any health related conditions from your pregnancy. You might also want to consult your doctor about the different positions you could explore without causing any discomfort to the mum or baby. check this article out for some tips: http://sg.theasianparent.com/pregnancy_sex_guide_for_dads/