What clock? You know, that pesky thing that is ticking for every woman over 35. There's no one way to have a baby as you mentioned, but if you want to have one that's biologically yours, the clock is ticking. It's not so much an annoying question to be asked as it is a fact of life. Single ladies, don't wait--for a relationship, a husband, the perfect time, take control of your destiny and either freeze your eggs or get knocked up with donor sperm. My two cents as someone who waited too long, tried and failed to get pregnant on my own.