Trimester refers to three time periods of equal lengths. So, given that a full-term pregnancy is 40 weeks, 40 divided into 3 parts = 13.3 weeks per trimester. You end your first trimester at about 13 weeks and 2 days.
When I went to the doctor he said 13 weeks was second trimester. I'm now 26 weeks and he said 27 weeks is third trimester. It's honestly confusing. Everyone says different. I heard 12,13,14 and 16 weeks to start second trimester
Best way to think of it is pregnancy from conception really is 38weeks 2 weeks are added as they date you from the first day of your last period. 38 divided roughly by 3 is 12.6 days roughly so in your 13th week you are considered in your second trimester then between 26 and 27 in your 3rd. Everyone works it out differently you just need to ask one person usually your midwife and stick to their guidelines xxx Happy pregnancy x
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.