regarding resolution 5 - not sure if baby was op or breech last time? But you want to try optimal foetal positioning. Just done a google search and am still seething that first result reads 'this is a midwives theory (pejorative?)' and should be practised from 37 weeks on....but does include some good positioning advice lower down so worth a read \link{http://www.homebirth.org.uk/ofp.htm\here}
My understanding is that in modern lifestyle we encourage the baby into a poor position by our posture in car seat, office chair, comfy chair at home, so you need to address all these areas as soon as you can (well, maybe not at 12 weeks, but much earlier than 37!)
Solutions include putting a small cushion on any chair you frequently sit in - you want your hips to be higher than your knees if at all possible. Further solutions include at least 5 mins a day on hand and knees (so that baby can relax into your tummy and hopefully get into oa position...his/her spine to your tummy...)
Good luck (might join your swimming club myself
)