1) You've mentioned a lot in this service about a woman's menstrual cycle, and the risks involved with unprotected sex. Details that you have mentioned include, for example, the high risk of pregnancy (i.e., as a result of unprotected sex or failed contraception) during the "fertile period" of a woman's cycle. What I would like to know is: what (typically) are the various stages in the cycle (e.g., ovulation followed by menstruation, etc.), when do they typically occur in the cycle, and, most importantly, WHEN are the (typical, of course) fertile and infertile (minimum chance of pregnancy) parts of the cycle?

2) When calculating the length of your menstrual cycle, what is considered to be the actual first day of your cycle? Is it the first day there is "red" bleeding, or does it also include the first day or two of brown discharge?

What is the deal with menstrual cups? How is it different than a diaphragm? Is it safe? Is it safe for virgins to use? Is insertion much more difficult than tampons? How do you take it out? What are the benefits? I'd like an educated opinion.

My boyfriend and I are having sex 2 days after my menstrual cycle. I am on birth control. I finish my cycle on a Saturday and start the new cycle on Sunday. We usually have sex on the Saturday night before I start the new cycle. Is it safe to have sex even though you have finished your menstrual cycle but have not started taking the pill for the next cycle?

I have a somewhat embarrassing question. Is there anything specific I can do in my diet or anything to where my PMS bleeding flow isn't so heavy? It has been so heavy that at times, I put a tampon in and in a matter of like 20 min, I have to change in the beginning of my cycle. I also have had it leak into my clothing. This can be quite embarrassing. Any help would be appreciated.

What is oxytocin and does your body produce it during masturbation? I heard you can buy it, but if you do, does that mean you are going to start producing milk at random times for women?

How long to wait for sex after a miscarriage? What if you already had sex too soon after a miscarriage? What will happen if you did?

1) My girlfriend and I had sex twice one night — the second time, we had to change condoms because she was dry and the lubricant had run out. Before I put the second condom on, she asked me to "put it in" without it on for a few seconds; which I did — not entirely all the way though. I instantly realized the mistake and withdrew. Naturally, as I expect, there is a small chance this could have gotten her pregnant. However, this was four days after her period ended, and the condoms we were using had nonoxynol-9 on the inside and outside. I had not ejaculated yet, as a matter of fact, I never did... and I had wiped the tip of my penis prior to doing this to avoid any pre-cum. My question is this: I'm hoping I'm right in assuming the chance of pregnancy is minimal — however, we are considering emergency contraception. What could you suggest?

2) My boyfriend and I had sex last night and we saw that the condom had broke. We don't know when it happened and I've been looking all over for the 72 hour correction thing that the commercials say — just in case. Can you help me?

This may seem a ridiculous question, but here goes. I have a trip planned to Hawaii and just realized that during my vacation time, I am scheduled to be on my period. Needless to say, that will definitely slow down my plans for ocean swimming and loads of tropical sex with my boyfriend. Is there a way to safely alter my cycle by missing birth control pills or other means?