I am 50 & experienced hotflushes since 2 weeks. my period is overdue 10days, otherwise always regulary. should i take the pill to prevent pregnancy?

Maybe : As you can imagine pregnancy would be super rare for someone your age. Having said that whether to use protection to prevent pregnancy is a personal decision. Pregnancy unlikely but not 100% impossible. If you have a new partner consider condoms as stds occur at any age. Talk to your doctor for additional advice as they know if you have any risk factors for estrogen use