1) I've always used condoms combined with a sponge for birth control. That worked well because if anything happened with the condom, there was always a backup — it made me feel safer. Then I get to New York, I go into three drug stores, and none of them have sponges. Now what? I don't want to rely on just condoms, I don't want to take pills because the whole hormone thing is rather frightening, and a doctor said that diaphragms make you more prone to get urinary tract infections, which I get frequently. So what am I supposed to do? What's up with this total absence of sponges?

2) In exploring other forms of contraception, what is the reliability rate of the "sponge"?

Is it possible to menstruate (have a period) without ovulating?

I love your site, Alice. It has helped me a lot. I found that no one has asked this on here from what I've seen so far. I was wondering about when you switch birth control pills. I was on Diane 35 and then I switched to Tricyclen, and I was wondering if it was safe to have sex without condoms before waiting for the second month because they are both birth control pills.

Do ribbed condoms affect the pleasures of sex?

Can a woman abort the fetus if she continues to take the pill?

I read on the Tri-cyclen website that the hormones mimic pregnancy and trick the body into thinking that I'm pregnant so that an ovum isn't released for fertilization, or in other words, no ovulation. If that's the case, why do I still menstruate? I thought that the only reason why I menstruate is to expel the unfertilized egg. Can you clarify?

Why does it take millions of ejaculated sperm to fertilize one egg?