Depends on cycle: Women are most fertile about 14 days before the next cycle is due. So day 18 would be your fertile day if you have 32 day cycles. If you have 28 day cycles your fertile day is day 14, so sex day 18 unlikely to get pregnant.
Answered 2/2/2013
5.3k views
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question