Hi Rachiex,
You're not dense. I didn't know about luteal and follicular till I was doing NBE....learned about it from NBE forum. Anyway, I'll try and explain as best as I can. Our cycle has different parts to it. Day one is the first day of the period... this is considered part of the follicular phase up till ovulation. Then after ovulation has occured it's considered the luteal....that week and a half before the nest period. During this period usually people will naturally swell a little...called luteal swelling. Then AF comes on day one and the swelling goes down/away....(at least for me it does).
I can't really explain about the pill. I know the one I just started keeps me from ovulating....so I dunno.....today will be day 3 for me. I've taken a different pill in the past and it did give me lots of swelling shortly before I was to have my period so it did still occur for me while taking it.....it was just more swelling than I normally got. Unfortunately it was only swelling and left once the period came and I went off the pill and no longer had that nice swelling.
With noogleberry during the luteal part, for me anyway, I've experienced being able to fill in further in the cup than follicular phase and the swelling is like
way cool, and lasts a little longer than it would in follicular. So far I haven't really grown yet cuz during period I lose that wonderful swelling....but so far I haven't yet....I'm still bigger right now than I was before starting and I'm on day 3 of my period. So currently I'm not able to swell as far into the cup.....I can't use the L right now ....using medium and during luteal I was filling out the L cup. It almost seems like a 2 steps forward one step back kinda thing...........
I hope this helps!