Correction: 5 earlier this year, and a 6th starting now. Of the 2 pods that have dried, however, I couldn't find any seeds. The plant may not be self-fertile.
P. primuliflora is definitely self fertile, mine flowered 8-9 times earlier this year, and a got a very good germination from the seeds (To much actually) and I'm currently growing the seedlings out.
Still pretty small, biggest are less than a centimeter still
Sounds like you've got a while before space is an issue then. I ended up sprouting a bunch of sundews by accident and in a month they're already a good inch or so across. I need to find somewhere to put them.