Hey AmySarah,

I also recommend the fertility friend charting course - it's free and will give you a good understanding of your fertile signs. Natural Fertility by Francesca Naish is great (as mentioned by Snacks and The Billings Method by Dr Evelyn Billings is also a great resource (with interesting pics of fertile mucous). You can often pick up these books at secondhand stores or on ebay.

The most simple and accurate way to determine fertile times is through cervical mucous, backed up with recording your basal body temp. Once you've done some reading or the charting course, you'll be aware of your fertility forever

All the best - the Billings Method is around 97% effective when used properly!

xxx