Please choose the correct ending to complete the given sentence: Health: [header] How to do prenatal yoga [title] Consult your prenatal physician before starting prenatal yoga. [step] Always follow your doctor's advice. As long as you are in good health with no pregnancy complications, your doctor will likely give you the go ahead.

Ending1: [substeps] The prenatal yoga practice is controversial, but it is a good idea to attempt to do it yourself on your own time and with medical supervision. [title] Practice one to two days a week, even if it's painful or uncomfortable at first. Ending2: She may say, " since most people are not pregnant yet, you must be able to do at least 2-3 yoga regularly. " or, " most people who are pregnant in the second half of their lifetime do not need more than 3 yoga sessions per week. Ending3: [substeps] If you have lower back problems or have a history of miscarriages, then prenatal yoga might not be for you. If your physician does not think that prenatal yoga is a safe activity for the both of you, you can inquire about safe, alternative methods that may have a similar effect as prenatal yoga. Ending4: They may suggest changes to your routine or encourage you to continue yoga throughout the pregnancy. [title] Sit on the floor with your knees drawn together.

Answer format: ending1/ending2/ending3/ending4