Fitness magazine has a special article on a post pregnancy workout which was tried by four moms. The article is here: http://www.fitnessmagazine.com/health/lose-baby-weight/workouts/post-baby-workout-plan/
You can find highly recommended boxing workout routines by inquiring directly. Boxing is a dying sport so you may be hard pressed to find something valuable.
Yes you can find workout plans for men online. A good website would be: http://www.mensfitness.com/training/workout-routines And you could research some online.
You can purchase the 300 Spartan workout from Amazon.com or other online retailers. There are also a number of videos on youtube.com that show portions of the workout that could get you started for free.
There are many websites where one can purchase workout gear online. These include Lorna Jane, Michelle Bridges, Old Navy, Running Bare and World Fitness.
Workout plans are available in books on the subject, which can be purchased in a bookstore, or checked out of a library. There are also many online sites that provide printable workout plans.
Yes, definitely you can watch push up video's online. In YouTube there are so many training instructors that uploaded different videos that you can watch which could help you on your workout everyday.
Headache is not a sign of pregnancy. Depo is a highly effective method. If you think you could be pregnant, take a pregnancy test.
One can purchase workout mats in bulk (and often at a reduced price) from online sources. Some that sell bulk workout mats are eBay, Fitness 1st, Amazon, and Yoga Mats Wholesale.
What my answer
There are excellent videos on you tube from Eva Redpath who is a versatile Actor, Dancer and Choreographer and creator of Body Conditioning by Dancers. By far the best free online workout videos you can use to improve your stamina.
You could actually have a good cardio workout plan without using any equipment. There are exercise tips which you can read on fitwatch.com like walking, jumping jacks, push ups and so much more.
YouTube has a vast selection of various workout videos. You could find nearly every type of workout video on YouTube. However make sure the videos are from good sources. And never push your self beyond your limit even if the video tells you to.