Hi and welcome MommaW.
You're already petite and breastfeeding, so that is already working for you. Plus, we've found anecdotally that couples who take a while to fall pregnant may be more "set" for pink anyway.
Keep doing what you're doing in terms of being vegetarian and I do want you (at your weight, nursing, and given your history of taking a while to fall pregnant) to continue at least 1 serv. of full fat dairy a day. NO skim dairy for you.
Calcium and magnesium are at your discretion. I got boys taking them and cut them out to get girls but I allow people to use them if they want. Just be sur you're doing supps and not ingesting tons of dairy foods as dairy foods (while allowed in moderate normal amounts) have tons of nutrients in them.
The rules are different when you have a proven deficiency. Continue taking the Vit. D you need, if you prefer you can dial it back to 2-3 times a week instead. Totally up to you.
No probiotics. That was the only supplement that ever got WORSE than 50-50 for pink for us. 60% of people got boys while taking them even with otherwise good pink sways. We now use them exclusively for blue.
BD every day of your cycle is not going to work not only for your sway, but also because it drastically cuts odds of conception. (Not sure if you BD all cycle long or only around O, though??) Either way I have a thread here that explains why BD through O doesn't always work the way people think and I have an explanation here, not the first post but a few down the page.
http://genderdreaming.com/forum/gend...nk-lately.html
What I would have you do instead is one of the two following options:
Either have hubby release on his own or with you, with a condom, every 2-4 days, and then have one attempt at positive OPK or if you absolutely must, a 2-3 day cutoff, no longer than that.
OR
BD unprotected every 4 days. (don't worry about what day the attempt falls on, just start after AF ends and continue on till you're sure you've ovulated even if htis means going on till NEXT AF.)
I don't want you worrying about jellies or douches or frequency or pH lowering supps since it took you so long to get pregnant twice. Those things have not worked for us anyway and will really cut odds of conception to nothing.