I believe that it is worth investing in maternity jeans early on in your pregnancy - they are so much more comfortable on your expanding waist, even with a small bump so why wait? Also compared to normal jeans they will have limited wear (although I have friends who still wear theirs for a Sunday roast). You will most probably be wearing them for a while once the baby has arrived too - so get some you love.
There's no exact science as to when you should start wearing maternity clothes. As every woman's body changes differently, you may not know when you need maternity clothing until your regular wardrobe starts feeling snug. A maternity band is a great piece to take you from the early stages of pregnancy to the end. It offers support for your growing belly, while giving you the coverage you may need as you transition from your regular clothes. Keep in mind that all maternity clothing sold on BestBuy.ca is designed to fit throughout pregnancy and after, so it's never too early (or late) to start stocking up on cute maternity tops, chic maternity dresses, and belly-hugging maternity bottoms.
Thyme Maternity is by far one of the best retail jobs I've ever had. Full time employees have great benefits and the management was always very positive and encouraging. The discounts were amazing and helping pregnant women find clothes and products that made them feel comfortable and pretty was a fulfilling and fun experience. The breaks were often and fair and the shifts were always a reasonable length. My only complaint is that the part-time hours could be unreliable but for a student or someone with a financial plan to fall back on it would be perfect. I would absolutely recommend working for any of Reitman's affiliates if you get the chance!
Commenters on earlier 'Mother of all' posts almost unanimously herald Seraphine as the best maternity jeans brand. Amtstevens swears: "I looked better in them than I did in my pre-pregnancy jeans! I am now pregnant with number two and relieved to be slipping back into these jeans. They are so comfy." Guayaba seconds this, saying her Seraphine jeans are: "even nicer than my normal jeans." CooperK says they work for her too, "and I'm no skinny minny." The maternity wear brand (they do breastfeeding clothes, too) was started by a French woman who honed her "fit systems" on herself during her two pregnancies. The jeans come in three lengths, and are all made in stretch denim for comfort and sag avoidance. They also do a good range of styles - here's a picture of Mad Men's January Jones, rocking their skinny grey luxe jeans (£65.00).